US20020002173A1 - Cyclocarbamate and cyclic amide derivatives - Google Patents
Cyclocarbamate and cyclic amide derivatives Download PDFInfo
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- US20020002173A1 US20020002173A1 US09/906,875 US90687501A US2002002173A1 US 20020002173 A1 US20020002173 A1 US 20020002173A1 US 90687501 A US90687501 A US 90687501A US 2002002173 A1 US2002002173 A1 US 2002002173A1
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- 0 *=C1[W]C(C)(C)c2*c(C)bc2N1C Chemical compound *=C1[W]C(C)(C)c2*c(C)bc2N1C 0.000 description 28
- XPGWFAZUEHWZIR-UHFFFAOYSA-N CC(C)=C1C(=O)OC(C)(C)OC1=O Chemical compound CC(C)=C1C(=O)OC(C)(C)OC1=O XPGWFAZUEHWZIR-UHFFFAOYSA-N 0.000 description 6
- UJGCLDRGVCSBND-UHFFFAOYSA-N C1=C[U]C=C1.CC.CC.CC(C)(C)C Chemical compound C1=C[U]C=C1.CC.CC.CC(C)(C)C UJGCLDRGVCSBND-UHFFFAOYSA-N 0.000 description 2
- PUACTIIESPYWSI-UHFFFAOYSA-N CC(C)C1=CC=CN=C1 Chemical compound CC(C)C1=CC=CN=C1 PUACTIIESPYWSI-UHFFFAOYSA-N 0.000 description 2
- BRNAGASJJCPMAQ-UHFFFAOYSA-N C.CC(=O)NC1=C(C2(O)CCCCC2)C=CS1.CC1=CC2=C(NC(=O)OC23CCCCC3)S1.COC(=O)C1=C(NC(C)=O)SC=C1.O=C1NC2=C(C=C(Br)S2)C2(CCCCC2)O1.O=C1NC2=C(C=CS2)C2(CCCCC2)O1 Chemical compound C.CC(=O)NC1=C(C2(O)CCCCC2)C=CS1.CC1=CC2=C(NC(=O)OC23CCCCC3)S1.COC(=O)C1=C(NC(C)=O)SC=C1.O=C1NC2=C(C=C(Br)S2)C2(CCCCC2)O1.O=C1NC2=C(C=CS2)C2(CCCCC2)O1 BRNAGASJJCPMAQ-UHFFFAOYSA-N 0.000 description 1
- WZONUIRLQBMCIS-UHFFFAOYSA-N C.CC(=O)NC1=C(C2(O)CCCCC2)SC=C1.CC1=CC2=C(S1)C1(CCCCC1)OC(=O)N2.COC(=O)C1=C(NC(C)=O)C=CS1.O=C1NC2=C(SC(Br)=C2)C2(CCCCC2)O1.O=C1NC2=C(SC=C2)C2(CCCCC2)O1 Chemical compound C.CC(=O)NC1=C(C2(O)CCCCC2)SC=C1.CC1=CC2=C(S1)C1(CCCCC1)OC(=O)N2.COC(=O)C1=C(NC(C)=O)C=CS1.O=C1NC2=C(SC(Br)=C2)C2(CCCCC2)O1.O=C1NC2=C(SC=C2)C2(CCCCC2)O1 WZONUIRLQBMCIS-UHFFFAOYSA-N 0.000 description 1
- HTYDMMHLIXOLCV-UHFFFAOYSA-N C.CC1=CC2=C(NC(=O)OC23CCCCC3)S1.CC1=CC2=C(NC(=S)OC23CCCCC3)S1.CC1=CC2=C(S1)C1(CCCCC1)OC(=O)N2.CC1=CC2=C(S1)C1(CCCCC1)OC(=S)N2 Chemical compound C.CC1=CC2=C(NC(=O)OC23CCCCC3)S1.CC1=CC2=C(NC(=S)OC23CCCCC3)S1.CC1=CC2=C(S1)C1(CCCCC1)OC(=O)N2.CC1=CC2=C(S1)C1(CCCCC1)OC(=S)N2 HTYDMMHLIXOLCV-UHFFFAOYSA-N 0.000 description 1
- XXYURADEAUVJNF-UHFFFAOYSA-N C.CC1=NC2=C(NC(=O)OC23CCCCC3)S1.O=C1NC2=C(N=C(Br)S2)C2(CCCCC2)O1.O=C1NC2=C(N=CS2)C2(CCCCC2)O1 Chemical compound C.CC1=NC2=C(NC(=O)OC23CCCCC3)S1.O=C1NC2=C(N=C(Br)S2)C2(CCCCC2)O1.O=C1NC2=C(N=CS2)C2(CCCCC2)O1 XXYURADEAUVJNF-UHFFFAOYSA-N 0.000 description 1
- PRKQUTJCBYZDCF-UHFFFAOYSA-M C=C1C=C(C)CC(C)(C)C1CC1=C(O[Ac])C=C(Br)C(OC)=C1 Chemical compound C=C1C=C(C)CC(C)(C)C1CC1=C(O[Ac])C=C(Br)C(OC)=C1 PRKQUTJCBYZDCF-UHFFFAOYSA-M 0.000 description 1
- PXXHJWCVGKGOFV-SBSDBWFASA-N C=C1CCC(O)C/C1=C/C=C1\CCCC2(C)C(C(C)=O)CCC12 Chemical compound C=C1CCC(O)C/C1=C/C=C1\CCCC2(C)C(C(C)=O)CCC12 PXXHJWCVGKGOFV-SBSDBWFASA-N 0.000 description 1
- JLRXEQLLHXIUOG-UHFFFAOYSA-N CC1=C2CC3(C)C(=CC(O)C(O[Ac])C3C)C=C2OC1=O Chemical compound CC1=C2CC3(C)C(=CC(O)C(O[Ac])C3C)C=C2OC1=O JLRXEQLLHXIUOG-UHFFFAOYSA-N 0.000 description 1
- QASVQWYKHBDCLY-UHFFFAOYSA-N CC1=CC(C)(C)NC2=CC=C(C3=CSC(C#N)=C3)C=C12 Chemical compound CC1=CC(C)(C)NC2=CC=C(C3=CSC(C#N)=C3)C=C12 QASVQWYKHBDCLY-UHFFFAOYSA-N 0.000 description 1
- HSHZYRDOSRDLMZ-UHFFFAOYSA-N ClC1=C(Cl)C=C(NC2CCCC3(CCNC4=CC=CC=C4S3)C2)C=C1 Chemical compound ClC1=C(Cl)C=C(NC2CCCC3(CCNC4=CC=CC=C4S3)C2)C=C1 HSHZYRDOSRDLMZ-UHFFFAOYSA-N 0.000 description 1
- NFXGORVTGOUZTR-UHFFFAOYSA-N O=C(C1=CC(Br)=C(F)C=C1)N1CCCC(C2=CC=CC=C2)=N1 Chemical compound O=C(C1=CC(Br)=C(F)C=C1)N1CCCC(C2=CC=CC=C2)=N1 NFXGORVTGOUZTR-UHFFFAOYSA-N 0.000 description 1
- ACMHIHPPNKFBLC-CFRMEGHHSA-N [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC(F)=CC=C2O/C1=C\C1=CC(C)=CC=C1 Chemical compound [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC(F)=CC=C2O/C1=C\C1=CC(C)=CC=C1 ACMHIHPPNKFBLC-CFRMEGHHSA-N 0.000 description 1
- NPDSJEIIHNPHHF-UHFFFAOYSA-N [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC(F)=CC=C2OC1C1=CC=C(Cl)C(C)=C1 Chemical compound [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC(F)=CC=C2OC1C1=CC=C(Cl)C(C)=C1 NPDSJEIIHNPHHF-UHFFFAOYSA-N 0.000 description 1
- SIAPVOBOIHAJRZ-UHFFFAOYSA-N [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC=CC=C2C(=O)O1.[H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC=CC=C2OC1=O.[H]N1C2=C(C=C3C(=C2)OC(=O)C2=C3C=CC=C2)C(C)=CC1(C)C Chemical compound [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC=CC=C2C(=O)O1.[H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC=CC=C2OC1=O.[H]N1C2=C(C=C3C(=C2)OC(=O)C2=C3C=CC=C2)C(C)=CC1(C)C SIAPVOBOIHAJRZ-UHFFFAOYSA-N 0.000 description 1
- NSOHKUPHTOMLEH-UHFFFAOYSA-N [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC=CC=C2C(C2=CC=CC=C2)O1 Chemical compound [H]N1C2=C(C(C)=CC1(C)C)C1=C(C=C2)C2=CC=CC=C2C(C2=CC=CC=C2)O1 NSOHKUPHTOMLEH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D498/04—Ortho-condensed systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/535—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
- A61K31/5365—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines ortho- or peri-condensed with heterocyclic ring systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/18—Feminine contraceptives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- This invention relates to compounds that act as agonists and antagonists of the progesterone receptor, their preparation, and utility.
- Intracellular receptors form a class of structurally related genetic regulators known as “ligand dependent transcription factors” (R. M. Evans, Science, 240, 889, 1988).
- the steroid receptor family is a subset of the IR family, including progesterone receptor (PR), estrogen receptor (ER), androgen receptor (AR), glucocorticoid receptor (GR), and mineralocorticoid receptor (MR).
- PR progesterone receptor
- ER estrogen receptor
- AR glucocorticoid receptor
- MR mineralocorticoid receptor
- the natural hormone, or ligand, for the PR is the steroid progesterone, but synthetic compounds, such as medroxyprogesterone acetate or levonorgestrel, have been made which also serve as ligands.
- a ligand Once a ligand is present in the fluid surrounding a cell, it passes through the membrane via passive diffusion, and binds to the IR to create a receptor/ligand complex. This complex then translocates to the nucleus of the cell where it binds to a specific gene or genes present in the cell's DNA. Once bound to a specific DNA sequence the complex modulates the production of the mRNA and protein encoded by that gene.
- a compound that binds to an IR and mimics the action of the natural hormone is termed an agonist, whilst a compound which inhibits the effect of the hormone is an antagonist.
- PR agonists are known to play an important role in the health of women.
- PR agonists are used in birth control formulations, typically in the presence of an ER agonist.
- ER agonists are used to treat the symptoms of menopause, but have been associated with a proliferative effect on the uterus (in non-hysterectomized women) which can lead to an increased risk of uterine cancers.
- Co-administration of a PR agonist reduces or ablates that risk.
- PR antagonists may also be used in contraception. In this context they may be administered alone (Ulmann, et al, Ann. N. Y. Acad. Sci., 261, 248, 1995), in combination with a PR agonist (Kekkonen, et al, Fertility and Sterility, 60, 610, 1993) or in combination with a partial ER antagonist such as tamoxifen (WO 96/19997 A1 Jul. 4, 1996).
- PR antagonists may also be useful for the treatment of hormone dependent breast cancers (Horwitz, et al, Horm. Cancer, 283, pub: Birkhaeuser, Boston, Mass., ed. Vedeckis) as well as uterine and ovarian cancers. PR antagonists may also be useful for the treatment of non-malignant chronic conditions such as fibroids (Murphy, et al, J. Clin. Endo. Metab., 76, 513, 1993) and endometriosis (Kettel, et al, Fertility and Sterility, 56, 402, 1991).
- PR antagonists may also be useful in hormone replacement therapy for post-menopausal patients in combination with a partial ER antagonist such as tamoxifen (U.S. Pat. No. 5,719,136).
- PR antagonists such as Mifepristone have also been shown to have bone sparing effects in rodents, and as such may be useful in the treatment of osteoporosis associated with the menopause (Barengolts, et al, Bone, 17, 21, 1995).
- PR antagonists such as mifepristone and onapristone have been shown to be effective in a model of hormone dependent prostate cancer, which may indicate their utility in the treatment of this condition in men (Michna, et al, Ann. N. Y. Acad. Sci., 761, 224, 1995).
- a and B are independent substituents selected from S, CH or N;
- one N may be optionally substituted with an C 1 to C 6 alkyl group
- R 1 and R 2 are independent substituents selected from the group of H, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 2 to C 6 alkenyl, substituted C 2 to C 6 alkenyl, C 2 to C 6 alkynyl, substituted C 2 to C 6 alkynyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, COR A , or NR B COR A ;
- R 1 and R 2 are fused to form:
- R A is H, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, aryl, substituted aryl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 aminoalkyl, or substituted C 1 to C 3 aminoalkyl;
- R B is H, C 1 to C 3 alkyl, or substituted C 1 to C 3 alkyl
- R 3 is H, OH, NH 2 , C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 6 alkenyl, substituted C 1 to C 6 alkenyl, alkynyl, or substituted alkynyl, or COR C ;
- R C is H, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, aryl, substituted aryl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 aminoalkyl, or substituted C 1 to C 3 aminoalkyl;
- R 4 is a trisubstituted benzene ring containing the substituents X, Y and Z as shown below,
- X is selected from halogen, CN, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 thioalkyl, substituted C 1 to C 3 thioalkyl, C 1 to C 3 aminoalkyl, substituted C 1 to C 3 aminoalkyl, NO 2 , C 1 to C 3 perfluoroalkyl, 5 or 6 membered heterocyclic ring containing 1 to 3 heteroatoms, COR D , OCOR D , or NR E COR D ;
- R D is H, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, aryl, substituted aryl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 aminoalkyl, or substituted C 1 to C 3 aminoalkyl;
- R E is H, C 1 to C 3 alkyl, or substituted C 1 to C 3 alkyl
- Y and Z are independent independently selected from H, halogen, CN, NO 2 , C 1 to C 3 alkoxy, C 1 to C 3 alkyl, or C 1 to C 3 thioalkyl; or
- R 4 is a five or six membered ring with 1, 2, or 3 heteroatoms from the group including OS, SO, SO 2 or NR 5 and containing one or two independent substituents from the group including H, halogen, CN, NO 2 and C 1 to C 3 alkyl, C 1 to C 3 alkoxy, C 1 to C 3 aminoalkyl, COR F , or NR G COR F ;
- R F is H, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, aryl, substituted aryl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 aminoalkyl, or substituted C 1 to C 3 aminoalkyl;
- R G is H, C 1 to C 3 alkyl, or substituted C 1 to C 3 alkyl
- R 5 is H, or C 1 to C 3 alkyl
- Q is O, S, NR 6 , or CR 7 R 8 ;
- R 6 is from the group including CN, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, or SO 2 CF 3 ;
- R 7 and R 8 are independent substituents from the group including H, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, NO 2 , or CN CO 2 R 9 ;
- R 9 is C 1 to C 3 alkyl
- CR 7 R 8 may comprise a six membered ring of the structure below:
- W is O or a chemical bond or a pharmaceutically acceptable salt thereof.
- a and B are independent substituents S, CH or N,
- a and B cannot both be CH;
- one N may be optionally substituted with an C 1 to C 6 alkyl group
- R 1 is H, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, COR A , or NR B COR A ;
- R 2 is H, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 2 to C 6 alkenyl, substituted C 2 to C 6 alkenyl, C 2 to C 6 alkynyl, substituted C 2 to C 6 alkynyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, COR A , or NR B COR A ;
- R 1 and R 2 are fused to form:
- R A is H, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, aryl, substituted aryl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 aminoalkyl, or substituted C 1 to C 3 aminoalkyl;
- R B is H, C 1 to C 3 alkyl, or substituted C 1 to C 3 alkyl
- R 3 is H, OH, NH 2 , C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 6 alkenyl, substituted C 1 to C 6 alkenyl, alkynyl, or substituted alkynyl, or COR C ;
- R C is H, C 1 to C 4 alkyl, substituted C 1 to C 4 alkyl, aryl, substituted aryl, C 1 to C 4 alkoxy, substituted C 1 to C 4 alkoxy, C 1 to C 4 aminoalkyl, or substituted C 1 to C 4 aminoalkyl;
- R 4 is a trisubstituted benzene ring containing the substituents X, Y and Z as shown below:
- X is taken from the group including halogen, CN, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 thioalkyl, substituted C 1 to C 3 thioalkyl, C 1 to C 3 aminoalkyl, substituted C 1 to C 3 aminoalkyl, NO 2 , C 1 to C 3 perfluoroalkyl, 5-membered heterocyclic ring containing 1 to 3 heteroatoms, COR D , OCOR D , or NR E COR D ;
- R D is H, C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, aryl, substituted aryl, C 1 to C 3 alkoxy, substituted C 1 to C 3 alkoxy, C 1 to C 3 aminoalkyl, or substituted C 1 to C 3 aminoalkyl;
- R E is H, C 1 to C 3 alkyl, or substituted C 1 to C 3 alkyl
- Y and Z are independent substituents taken from the group including H, halogen, CN, NO 2 , C 1 to C 3 alkoxy, C 1 to C 3 alkyl, or C 1 to C 3 thioalkyl; or
- R 4 is a five or six membered ring with 1, 2, or 3 heteroatoms from the group including O, S, SO, SO 2 or NR 5 and containing one or two independent substituents from the group including H, halogen, CN, NO 2 and C 1 to C 3 alkyl, or C 1 to C 3 alkoxy;
- R 5 is H or C 1 to C 3 alkyl
- Q is O, S, NR 6 , or CR 7 R 8 ;
- R 6 is from the group including CN, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, or SO 2 CF 3 ;
- R 7 and R 8 are independent substituents from the group including H, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, NO 2 , or CN CO 2 R 9 ;
- R 9 is C 1 to C 3 alkyl, or CR 8 R 9 comprise a six membered ring as shown by the structure below
- W is O or a chemical bond or a pharmaceutically acceptable salt thereof.
- a and B are independent substituents from the group including S, CH or N;
- a and B cannot both be CH;
- R 1 R 2 and are selected from the group which includes C 1 to C 3 alkyl, substituted C 1 to C 3 alkyl, or spirocyclic alkyl constructed by fusing R 1 and R 2 to form a 3 to 6 membered spirocyclic ring;
- R 3 is H, OH, NH 2 , C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, or COR C ;
- R C is H, C 1 to C 4 alkyl, or C 1 to C 4 alkoxy
- R 4 is a disubstituted benzene ring containing the substituents X and Y as shown below:
- X is selected from the group including halogen, CN, C 1 to C 3 alkoxy, C 1 to C 3 alkyl, NO 2 , C 1 to C 3 perfluoroalkyl, 5 membered heterocyclic ring containing 1 to 3 heteroatoms, or C 1 to C 3 thioalkyl;
- Y is a substituent on the 4′ or 5′ position selected from the group of H, halogen, CN, NO 2 , C 1 to C 3 alkoxy, C 1 to C 4 alkyl, or C 1 to C 3 thioalkyl; or
- R 4 is a five membered ring with the structure shown below:
- U is O, S, or NR 5 ;
- R 5 is H, or C 1 to C 3 alkyl, or C 1 to C 4 CO 2 alkyl;
- X′ is selected from halogen, CN, NO 2 , C 1 to C 3 alkyl or C 1 to C 3 alkoxy;
- Y′ is H or C 1 to C 4 alkyl
- R 4 is a six membered ring with the structure:
- X 1 is N or CX 2 ,
- X 2 is halogen, CN or NO 2 ;
- Q is O, S, NR 6 , or CR 7 R 8 ;
- R 6 is selected from the group including CN, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, or SO 2 CF 3 ;
- R 7 and R 8 are independent substituents selected from the group of H, C 1 to C 6 alkyl, substituted C 1 to C 6 alkyl, C 3 to C 8 cycloalkyl, substituted C 3 to C 8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, NO 2 , or CN CO 2 R 9 ;
- R 9 is C 1 to C 3 alkyl; or CR 7 R 8 comprise a six membered ring of the structure:
- W is O or a chemical bond; or a pharmaceutically acceptable salt thereof
- Each of the generic and subgeneric groups of compounds herein may further be divided into two further subgroups, one in which Q is oxygen and another wherein Q is selected from S, NR 6 , or CR 7 R 8 .
- the compounds of this invention have been shown to bind to the PR and act as agonists and/or antagonists in functional models, either in-vitro and/or in-vivo. These compounds may be used for contraception, in the treatment of fibroids, endometriosis, breast, uterine, ovarian and prostate cancer, osteoporosis and post menopausal hormone replacement therapy.
- the compounds in the present invention contain a pendent aromatic substituent which may consist of aryl, substituted aryl, heteroaryl or substituted heteroaryl groups.
- the compounds of this invention may contain an asymmetric carbon atom and some of the compounds of this invention may contain one or more asymmetric centers and may thus give rise to optical isomers and diastereomers. While shown without respect to stereochemistry in Formula I, II, and III, the present invention includes such optical isomers and diastereomers; as well as the racemic and resolved, enantiomerically pure R and S stereoisomers; as well as other mixtures of the R and S stereoisomers and pharmaceutically acceptable salts thereof
- alkyl is used herein to refer to both straight- and branched-chain saturated aliphatic hydrocarbon groups having from one to 8 carbon atoms, preferably from 1 to 6 carbon atoms; “alkenyl” is intended to include both straight- and branched-chain alkyl group having from 2 to 8 carbon atoms, preferably 2 to 6 carbon atoms, with at least one carbon-carbon double bond; “alkynyl” group is intended to cover both straight- and branched-chain alkyl group having from 2 to 8 carbon atoms, preferably 2 to 6 carbon atoms, with at least one carbon-carbon triple bond.
- substituted alkyl refers to alkyl, alkenyl, and alkynyl as just described having one or more substituents from the group including halogen, CN, OH, NO 2 , amino, aryl, heterocyclic, substituted aryl, substituted heterocyclic, alkoxy, aryloxy, substituted alkyloxy, alkylcarbonyl, alkylcarboxy, alkylamino, arylthio.
- substituents may be attached to any carbon of alkyl, alkenyl, or alkynyl group provided that the attachment constitutes a stable chemical moiety.
- aryl is used herein to refer to an aromatic system which may be a single ring or multiple aromatic rings fused or linked together as such that at least one part of the fused or linked rings forms the conjugated aromatic system.
- the aryl groups include but not limited to phenyl, naphthyl, biphenyl, anthryl, tetrohydronaphthyl, phenanthryl.
- substituted aryl refers to aryl as just defined having one or more substituents from the group including halogen, CN, OH, NO 2 , amino, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, aryloxy, substituted alkyloxy, alkylcarbonyl, alkylcarboxy, alkylamino, or arylthio.
- heterocyclic is used herein to describe a stable 4- to 7-membered monocyclic or a stable multicyclic heterocyclic ring which is saturated, partially unsaturated, or unsaturated, and which consists of carbon atoms and from one to four heteroatoms selected from the group including N, O, and S atoms.
- the N and S atoms may be oxidized.
- the heterocyclic ring also includes any multicyclic ring in which any of above defined heterocyclic rings is fused to an aryl ring.
- the heterocyclic ring may be attached at any heteroatom or carbon atom provided the resultant structure is chemically stable.
- heterocyclic groups include, for example, tetrahydrofuran, piperidinyl, piperazinyl, 2-oxopiperidinyl, azepinyl, pyrrolidinyl, imidazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, oxazolyl, isoxazolyl, morpholinyl, indolyl, quinolinyl, thienyl, furyl, benzofuranyl, benzothienyl, thiamorpholinyl, thiamorpholinyl sulfoxide, and isoquinolinyl.
- substituted heterocyclic is used herein to describe the heterocyclic just defined having one or more substituents selected from the group which includes halogen, CN, OH, NO 2 , amino, alkyl, substituted alkyl, cycloalkyl, alkenyl, substituted alkenyl, alkynyl, alkoxy, aryloxy, substituted alkyloxy, alkylcarbonyl, alkylcarboxy, alkylamino, or arylthio.
- alkoxy is used herein to refer to the OR group, where R is alkyl or substituted alkyl.
- aryloxy is used herein to refer to the OR group, where R is aryl or substituted aryl.
- alkylcarbonyl is used herein to refer to the RCO group, where R is alkyl or substituted alkyl.
- alkylcarboxy is used herein to refer to the COOR group, where R is alkyl or substituted alkyl.
- aminoalkyl refers to both secondary and tertiary amines wherein the alkyl or substituted alkyl groups may be either same or different and the point of attachment is on the nitrogen atom.
- thioalkyl is used herein to refer to the SR group, where R is alkyl or substituted alkyl.
- halogen refers to Cl, Br, F, and I element.
- a chloroformate or carbonate derivative such as methyl chloroformate, ethyl chloroformate, allyl chloroformate, 2-(trimethylsilyl)ethyl chloroformate or di-tert-butyldicarbonate
- a solvent such as benzene, toluene, xylene, dichloromethane, tetrahydrofuran or pyridine.
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C
- a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine.
- an organo-metallic reagent such as a Grignard reagent, an alkyl or aryl-zinc reagent, an alkyl or aryl lithium reagent in an inert solvent (tetrahydrofuran, diethylether) under an inert atmosphere (nitrogen or argon) at a suitable temperature from 0° C. up to reflux temperature of the solvent will then provide the tertiary alcohol 4.
- Compound 4 may then be subjected to basic conditions to effect ring closure to give the cyclocarbamate derivative 5. Suitable conditions would involve treatment of 4 with a base such as potassium hydroxide in a solvent such as ethanol or potassium t-butoxide in a solvent such as tetrahydrofuran. The reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- a base such as potassium hydroxide in a solvent such as ethanol or potassium t-butoxide in a solvent such as tetrahydrofuran.
- the reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- the carbamate protecting group present in 4 may be removed under conditions appropriate for its removal to afford 6 (Scheme 2).
- a reagent such as phosgene, carbonyldiimidazole or dimethyl carbonate in an appropriate solvent (tetrahydrofuran, dichloromethane, benzene, etc.) also will provide access to 5.
- compound 4 may be dehydrated to afford the isopropene derivative 7 (Scheme 3).
- Suitable conditions for the dehydration would be the use of a reagent such as acetic anhydride, methanesulfonyl chloride, p-toluenesulfonyl chloride or trifluoromethane sulfonyl chloride or anhydride, in a solvent such as pyridine, tetrahydrofuran, dichloromethane or benzene.
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C.
- a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine. Exposure of 7 to acidic conditions would then afford ring closure to give 5. Suitable conditions would be the use of an acid such as p-toluenesulfonic acid, methanesulfonic acid or camphorsulfonic acid in a solvent such as dichloromethane, benzene, toluene or tetrahydrofuran. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- an inert atmosphere nitrogen or argon
- Compound 9 may then be subjected to basic conditions to effect ring closure to give the cyclocarbamate derivative 10.
- Suitable conditions would involve treatment of 10 with a base such as potassium hydroxide in a solvent such as ethanol or potassium t-butoxide in a solvent such as tetrahydrofuran.
- the reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- Compound 10 may then be converted to the brominated derivative 11.
- Suitable conditions would be treatment with bromine or N-bromosuccinimide in a solvent such as dichloromethane, tetrahydrofuran or acetic acid.
- the reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent in the presence of an additive such as silica gel.
- an additive such as silica gel.
- Subsequent reaction of 11 with an aryl or heteroaryl boronic acid, boronic acid anhydride or trialkyl stannane then provides access to the desired biaryl compound 5.
- the reaction can be carried out in a solvent such as acetone, ethanol, benzene, toluene or tetrahydrofuran, under an inert atmosphere (nitrogen or argon) from 0° C.
- a palladium catalyst such as tetrakis(triphenylphosphine)palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate.
- 10 may be treated at low temperature with a reagent such as an alkyl lithium or lithium amide in an inert solvent such as tetrahydrofuran, and then converted to a boronic acid 12 (M ⁇ B(OH) 2 ) under the action of trimethyl or triisopropyl borate, or into a stannane via reaction with trimethyltin chloride or bis(trimethyltin).
- a reagent such as an alkyl lithium or lithium amide in an inert solvent such as tetrahydrofuran
- the amino thiophene compounds 15 are prepared according to a literature procedure (Comprehensive Heterocyclic Chemistry II. A Review of the Literature 1982-1995. A. R. Katrisky et al., Vol. 2, page 639) which involves treating a suitably substituted aromatic methyl ketone 13 with phosphorus oxychloride in N,N-dimethyl formamide to afford the chloro cyano olefin derivative 14. Allowing 14 to react with methyl mercaptoacetate in methanol containing sodium methoxide affords the key aminothiophene carboxylate starting material. Reaction of the 2-amino group with a suitable chloroformate or carbonate affords the protected amine 16.
- a chloroformate or carbonate derivative such as methyl chloroformate, ethyl chloroformate, allyl chloroformate, 2-(trimethylsilyl)ethyl chloroformate or di-tert-butyldicarbonate
- a solvent such as benzene, toluene, xylene, dichloromethane, tetrahydrofuran or pyridine.
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C
- a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine.
- an organo-metallic reagent such as a Grignard reagent, an alkyl or aryl-zinc reagent, an alkyl or aryl lithium reagent in an inert solvent (tetrahydrofuran, diethylether) under an inert atmosphere (nitrogen or argon) at a suitable temperature from 0° C. up to reflux temperature of the solvent will then provide the tertiary alcohol 17.
- Compound 17 may then be subjected to basic conditions to effect ring closure to give the cyclocarbamate derivative 18.
- Suitable conditions would involve treatment of 4 with a base such as potassium hydroxide in a solvent such as ethanol or potassium t-butoxide in tetrahydrofuran.
- the reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- the carbamate protecting group present in 17 may be removed under conditions appropriate for its removal to afford 19 (Scheme 7). Subsequent ring closure of 19 with a reagent such as phosgene, carbonyldiimidazole or dimethyl carbonate in an appropriate solvent (tetrahydrofuran, dichloromethane, benzene, etc.) also will provide access to 18.
- a reagent such as phosgene, carbonyldiimidazole or dimethyl carbonate in an appropriate solvent (tetrahydrofuran, dichloromethane, benzene, etc.) also will provide access to 18.
- compound 17 may be dehydrated to afford the isopropene derivative 20 (Scheme 8).
- Suitable conditions for the dehydration would be the use of a reagent such as acetic anhydride, methanesulfonyl chloride, p-toluenesulfonyl chloride or trifluoromethane sulfonyl chloride or anhydride, in a solvent such as pyridine, tetrahydrofuran, dichloromethane or benzene.
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C.
- a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine.
- Exposure of 20 to acidic conditions would then afford ring closure to give 18.
- Suitable conditions would be the use of an acid such as p-toluenesulfonic acid, methanesulfonic acid or camphorsulfonic acid in a solvent such as dichloromethane, benzene, toluene or tetrahydrofuran.
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- Compound 22 may then be subjected to basic conditions to effect ring closure to give the cyclocarbamate derivative 23.
- Suitable conditions would involve treatment of 22 with a base such as potassium hydroxide in a solvent such as ethanol or potassium t-butoxide in tetrahydrofuran.
- the reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- Compound 23 may then be converted to the brominated derivative 24.
- Suitable conditions would be treatment with bromine or N-bromosuccinimide in a solvent such as dichloromethane, tetrahydrofuran or acetic acid.
- the reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent in the presence of an additive such as silica gel.
- an additive such as silica gel.
- Subsequent reaction of 24 with an aryl or heteroaryl boronic acid boronic acid anhydride or trialkyl stannane then provides access to the desired biaryl compound 18.
- the reaction can be carried out in a solvent such as acetone, ethanol, benzene, toluene or tetrahydrofuran, under an inert atmosphere (nitrogen or argon) from 0° C.
- a palladium catalyst such as tetrakis(triphenylphosphine)palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate.
- 23 may be treated at low temperature with a reagent such as an alkyl lithium or lithium amide in an inert solvent such as tetrahydrofuran, and then converted to a boronic acid 25 (M ⁇ B(OH) 2 ) under the action of trimethyl or triisopropyl borate, or into a stannane via reaction with trimethyltin chloride or bis(trimethyltin).
- a reagent such as an alkyl lithium or lithium amide in an inert solvent such as tetrahydrofuran
- Thiophene thiocyclocarbamates 26 and 27 may be obtained directly by treating 5 and 18 respectively with phosphorus pentasulfide in refluxing pyridine.
- 5 and 18 may be treated with Lawesson's reagent ([2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide]) in refluxing pyridine to afford 26 and 27, respectively.
- thiazole 28 was prepared according to a literature procedure, schemel 2 by B. Golankiewicz and P. Januszczyk, Tetrahedron, 41:5989 (1985). Reaction of the amine 28 with a suitable chloroformate or carbonate then gives the protected amine 29. This may be accomplished by reacting compound 28 with a chloroformate or carbonate derivative such as methylchloroformate, ethylchloroformate, allylchloroformate, 2-(trimethylsilyl)ethylchloroformate or di-tert-butyldicarbonate in a solvent such as dichloromethane, THF, benzene, xylene or pyridine.
- a chloroformate or carbonate derivative such as methylchloroformate, ethylchloroformate, allylchloroformate, 2-(trimethylsilyl)ethylchloroformate or di-tert-butyldicarbonate
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent and may require the presence of a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine.
- a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine.
- Exposure of compound 29 to an organo-metallic reagent such as a Grignard reagent, an alkyl or aryl-zinc reagent, an alkyl or aryl lithium reagent in an inert solvent (THF, diethyl ether) under an inert atmosphere (nitrogen or argon) at a suitable temperature from 0° C. up to the reflux temperature of the solvent will then provide the alcohol 30.
- Compound 30 may then be exposed to basic conditions to effect ring closure to give the cyclocarbamate derivative 31. Suitable conditions would involve treatment of compound 30 with a base such as potassium hydroxide in a solvent such as ethanol.
- a base such as potassium hydroxide in a solvent such as ethanol.
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent
- the carbamate protecting group present in compound 30 may be removed under conditions appropriate for its removal to afford compound 32 as taught by T. W. Greene and P. G. M. Wuts, Protective Groups in Organic Synthesis, second ed., Wiley-Interscience (1991). Subsequent ring closure of compound 32 with a reagent such as phosgene, carbonyl diimidazole or dimethyl carbonate in an appropriate solvent (THF, dichloromethane, benzene, etc) will also provide access to compound 31.
- a reagent such as phosgene, carbonyl diimidazole or dimethyl carbonate in an appropriate solvent (THF, dichloromethane, benzene, etc) will also provide access to compound 31.
- compound 30 is a tertiary alcohol then it may be dehydrated to afford the isopropene derivative 33, scheme 3.
- Suitable conditions for the dehydration would the use of a reagent such as acetic anhydride, methanesulfonyl chloride, p-toluenesulfonyl chloride or trifluoromethane sulfonyl chloride or anhydride, in a solvent such as pyridine, THF, dichloromethane or benzene.
- the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C.
- a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine.
- Exposure of compound 33 to acidic conditions would then afford ring closure to give compound 31.
- Suitable conditions would be the use of an acid such as p-toluenesulfonic acid, methanesulfonic acid or camphorsulfonic acid in a solvent such as dichloromethane, benzene, toluene or THF and the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- Compound 31 may then be converted into the bromide 34, scheme 15. Suitable conditions would be exposure to bromine or N-bromosuccinimide in a solvent such as dichloromethane, THF or acetic acid, the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent in the presence of an additive such as silica gel. Subsequent reaction of compound 34 with an aryl or heteroaryl boronic acid, boronic acid anhydride or trialkyl stannane then provides access to the desired biaryl compound 35.
- a solvent such as dichloromethane, THF or acetic acid
- the reaction can be carried out in a solvent such as acetone, ethanol, benzene, toluene or THF, under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent, in the presence of a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate.
- a solvent such as acetone, ethanol, benzene, toluene or THF
- an inert atmosphere nitrogen or argon
- compound 31 may be treated at low temperature with a reagent such as an alkyl lithium or lithium amide in an inert solvent such as THF, and then converted into a boronic acid (M ⁇ B(OH) 2 ) 36 under the action of trimethyl or triisopropyl borate, or into a stannane under the action of trimethyltin chloride or bis(trimethyltin), Scheme 16.
- a reagent such as an alkyl lithium or lithium amide in an inert solvent such as THF
- the amine 37 is converted into a carbamate, such as a tert-butyl carbamate as described in scheme 1 for the preparation of compound 2.
- Hydrolysis of the ester 38 under basic conditions, for example lithium or sodium hydroxide in THF or methanol at room temperature then gives the acid 39.
- Conversion of the acid 39 into the acid chloride 40 is accomplished under standard conditions, thionyl chloride or oxalyl chloride either neat or in the presence of a solvent such as dichloromethane and an additive such as a catalytic amount of N,N-dimethylformamide.
- Compound 40 is then reacted with diazomethane or trimethylsilyldiazomethane in an inert solvent such as THF or dichloromethane, and the product diazoketone 41 is then rearranged in the presence of silver (I) oxide to afford the acid 42.
- Treatment of compound 42 under conditions that specifically remove the protecting carbamate functionality, for example acidic conditions, will then affect cyclization to give compound 43.
- an alkylating agent such as an alkyl iodide, bromide, tosylate or mesylate, or a bis-alkyl iodide, bromide, tosylate or mesylate
- an alkylating agent such as an alkyl iodide, bromide, tosylate or mesylate, or a bis-alkyl iodide, bromide, tosylate or mesylate
- basic conditions for example butyl lithium
- Compound 50 may then be converted into the bromide 51. Suitable conditions would be exposure to bromine or N-bromosuccinimide in a solvent such as dichloromethane, THF or acetic acid, the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent in the presence of an additive such as silica gel. Subsequent reaction of compound 51 with an aryl or heteroaryl boronic acid, boronic acid anhydride or trialkyl stannane then provides access to the desired biaryl compound 52.
- a solvent such as dichloromethane, THF or acetic acid
- the reaction can be carried out in a solvent such as acetone, ethanol, benzene, toluene or THF, under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent, in the presence of a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate.
- a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate.
- the thione derivative, compound 53 may be obtained directly by treating 52 with phosphorus pentasulfide in refluxing pyridine. Alternatively 52 may be treated with Lawesson's reagent in refluxing pyridine to afford 53.
- the compounds of the present invention can be used in the form of salts derived from pharmaceutically or physiologically acceptable acids or bases.
- These salts include, but are not limited to, the following salts with inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid and, as the case may be, such organic acids as acetic acid, oxalic acid, succinic acid, and maleic acid.
- Other salts include salts with alkali metals or alkaline earth metals, such as sodium, potassium, calcium or magnesium in the form of esters, carbamates and other conventional “pro-drug” forms, which, when administered in such form, convert to the active moiety in vivo.
- This invention includes pharmaceutical compositions and treatments which comprise administering to a mammal a pharmaceutically effective amount of one or more compounds as described above wherein Q is oxygen as antagonists of the progesterone receptor.
- the invention further provides comparable methods and compositions which utilize one or more compounds herein wherein Q is S, NR 6 , or CR 7 R 8 as agonists of the progesterone receptor.
- the progesterone receptor antagonists of this invention can be utilized in methods of contraception and the treatment and/or prevention of benign and malignant neoplastic disease.
- Specific uses of the compounds and pharmaceutical compositions of invention include the treatment and/or prevention of uterine myometrial fibroids, endometriosis, benign prostatic hypertrophy; carcinomas and adenocarcinomas of the endometrium, ovary, breast, colon, prostate, pituitary, meningioma and other hormone-dependent tumors.
- Additional uses of the present progesterone receptor antagonists include the synchronization of the estrus in livestock.
- the progesterone receptor agonists of this invention can be utilized in methods of contraception and the treatment and/or prevention of dysfunctional bleeding, uterine leiomyomata, endometriosis; polycystic ovary syndrome, carcinomas and adenocarcinomas of the endometrium, ovary, breast, colon, prostate. Additional uses of the invention include stimulation of food intake.
- This invention also includes pharmaceutical compositions comprising one or more compounds of this invention with a pharmaceutically acceptable carrier or excipient.
- the compounds may be combined with one or more pharmaceutically acceptable carriers or excipients, for example, solvents, diluents and the like, and may be administered orally in such forms as tablets, capsules, dispersible powders, granules, or suspensions containing, for example, from about 0.05 to 5% of suspending agent, syrups containing, for example, from about 10 to 50% of sugar, and elixirs containing, for example, from about 20 to 50% ethanol, and the like, or parenterally in the form of sterile injectable solutions or suspensions containing from about 0.05 to 5% suspending agent in an isotonic medium.
- Such pharmaceutical preparations may contain, for example, from about 25 to about 90% of the active ingredient in combination with the carrier, more usually between about 5% and 60% by weight.
- the effective dosage of active ingredient employed may vary depending on the particular compound employed, the mode of administration and the severity of the condition being treated. However, in general, satisfactory results are obtained when the compounds of the invention are administered at a daily dosage of from about 0.5 to about 500 mg/kg of animal body weight, preferably given in divided doses two to four times a day, or in a sustained release form. For most large mammals, the total daily dosage is from about 1 to 100 mg, preferably from about 2 to 80 mg.
- Dosage forms suitable for internal use comprise from about 0.5 to 500 mg of the active compound in intimate admixture with a solid or liquid pharmaceutically acceptable carrier. This dosage regimen may be adjusted to provide the optimal therapeutic response. For example, several divided doses may be administered daily or the dose may be proportionally reduced as indicated by the exigencies of the therapeutic situation.
- active compounds may be administered orally as well as by intravenous, intramuscular, or subcutaneous routes.
- Solid carriers include starch, lactose, dicalcium phosphate, microcrystalline cellulose, sucrose and kaolin, while liquid carriers include sterile water, polyethylene glycols, non-ionic surfactants and edible oils such as corn, peanut and sesame oils, as are appropriate to the nature of the active ingredient and the particular form of administration desired.
- Adjuvents customarily employed in the preparation of pharmaceutical compositions may be advantageously included, such as flavoring agents, coloring agents, preserving agents, and antioxidants, for example, vitamin E, ascorbic acid, BHT and BHA.
- compositions from the standpoint of ease of preparation and administration are solid compositions, particularly tablets and hard-filled or liquid-filled capsules. Oral administration of the compounds is preferred.
- active compounds may also be administered parenterally or intraperitoneally.
- Solutions or suspensions of these active compounds as a free base or pharmacologically acceptable salt can be prepared in water suitably mixed with a surfactant such as hydroxypropylcellulose.
- Dispersions can also be prepared in glycerol, liquid, polyethylene glycols and mixtures thereof in oils. Under ordinary conditions of storage and use, these preparations contain a preservative to prevent the growth of microorganisms.
- the pharmaceutical forms suitable for injectable use include sterile aqueous solutions or dispersions and sterile powders for the extemporaneous preparation of sterile injectable solutions or dispersions.
- the form must be sterile and must be fluid to the extent that easy syringe ability exits. It must be stable under conditions of manufacture and storage and must be preserved against the contaminating action of microorganisms such as bacterial and fungi.
- the carrier can be a solvent or dispersion medium containing, for example, water, ethanol (e.g., glycerol, propylene glycol and liquid polyethylene glycol), suitable mixtures thereof, and vegetable oil.
- the progestational activity of the current invention was evaluated in the PRE-luciferase assay in CV-1 cells, described below. In-vitro potencies can be in the range 0.01 nM-10,000 nM. In vivo potencies are anticipated to be in the range 1 mg/kg to 30 mg/kg.
- the object of this assay is to determine a compound's progestational or antiprogestational potency based on its effect on PRE-luciferase reporter activity in CV-1 cells co-transfected with human PR and PRE-luciferase plasmids.
- the materials methods used in the assay are as follows.
- the growth medium was as follows: DMEM (BioWhittaker) containing 10% (v/v) fetal bovine serum (heat inactivated), 0.1 mM MEM non-essential amino acids, 100 U/ml penicillin, 100 mg/ml streptomycin, and 2 mM GlutaMax (GIBCO, BRL).
- the experimental medium was as follows: DMEM (BioWhittaker), phenol red-free, containing 10% (v/v) charcoal-stripped fetal bovine serum (heat-inactivated), 0.1 mM MEM non-essential amino acids, 100 U/ml penicillin, 100 mg/ml streptomycin, and 2 mM GlutaMax (GIBCO, BRL).
- Cells are then treated with reference or test compounds in experimental medium. Compounds are tested for antiprogestational activity in the presence of 3 nM progesterone. Twenty-four hr. after treatment, the medium is discarded, cells are washed three times with D-PBS (GIBCO, BRL). Fifty ⁇ l of cell lysis buffer (Promega, Madison, Wis.) is added to each well and the plates are shaken for 15 min in a Titer Plate Shaker (Lab Line Instrument, Inc.). Luciferase activity is measured using luciferase reagents from Promega.
- Each treatment consists of at least 4 replicates.
- Log transformed data are used for analysis of variance and nonlinear dose response curve fitting for both agonist and antagonist modes. Huber weighting is used to downweight the effects of outliers.
- EC 50 or IC 50 values are calculated from the retransformed values.
- JMP software SAS Institute, Inc. is used for both one-way analysis of variance and non-linear response analyses.
- Progesterone and trimegestone are reference pro gestins and RU486 is the reference antiprogestin. All reference compounds are run in full dose-response curves and the EC 50 or IC 50 values are calculated. TABLE 1 Estimated EC 50 , standard error (SE), and 95% confidence intervals (CI) for reference progestins from three individual studies EC50 95% CI Compound Exp.
- Progestational activity Compounds that increase PRE-luciferase activity significantly (p ⁇ 0.05) compared to vehicle control are considered active.
- Antiprogestational activity Compounds that decrease 3 nM progesterone induced PRE-luciferase activity significantly (p ⁇ 0.05)
- EC 50 Concentration of a compound that gives half-maximal increase PRE-luciferase activity (default-nM) with SE.
- IC 50 Concentration of a compound that gives half-maximal decrease in 3 nM progesterone induced PRE-luciferase activity (default-nM) with SE.
Abstract
Description
- This application claims the benefit of U.S. patent application Ser. No. 09/304,555, filed May 4, 1999.
- This invention relates to compounds that act as agonists and antagonists of the progesterone receptor, their preparation, and utility.
- Intracellular receptors (IR) form a class of structurally related genetic regulators known as “ligand dependent transcription factors” (R. M. Evans,Science, 240, 889, 1988). The steroid receptor family is a subset of the IR family, including progesterone receptor (PR), estrogen receptor (ER), androgen receptor (AR), glucocorticoid receptor (GR), and mineralocorticoid receptor (MR).
- The natural hormone, or ligand, for the PR is the steroid progesterone, but synthetic compounds, such as medroxyprogesterone acetate or levonorgestrel, have been made which also serve as ligands. Once a ligand is present in the fluid surrounding a cell, it passes through the membrane via passive diffusion, and binds to the IR to create a receptor/ligand complex. This complex then translocates to the nucleus of the cell where it binds to a specific gene or genes present in the cell's DNA. Once bound to a specific DNA sequence the complex modulates the production of the mRNA and protein encoded by that gene.
- A compound that binds to an IR and mimics the action of the natural hormone is termed an agonist, whilst a compound which inhibits the effect of the hormone is an antagonist.
- PR agonists (natural and synthetic) are known to play an important role in the health of women. PR agonists are used in birth control formulations, typically in the presence of an ER agonist. ER agonists are used to treat the symptoms of menopause, but have been associated with a proliferative effect on the uterus (in non-hysterectomized women) which can lead to an increased risk of uterine cancers. Co-administration of a PR agonist reduces or ablates that risk.
- PR antagonists may also be used in contraception. In this context they may be administered alone (Ulmann, et al,Ann. N. Y. Acad. Sci., 261, 248, 1995), in combination with a PR agonist (Kekkonen, et al, Fertility and Sterility, 60, 610, 1993) or in combination with a partial ER antagonist such as tamoxifen (WO 96/19997 A1 Jul. 4, 1996).
- PR antagonists may also be useful for the treatment of hormone dependent breast cancers (Horwitz, et al,Horm. Cancer, 283, pub: Birkhaeuser, Boston, Mass., ed. Vedeckis) as well as uterine and ovarian cancers. PR antagonists may also be useful for the treatment of non-malignant chronic conditions such as fibroids (Murphy, et al, J. Clin. Endo. Metab., 76, 513, 1993) and endometriosis (Kettel, et al, Fertility and Sterility, 56, 402, 1991).
- PR antagonists may also be useful in hormone replacement therapy for post-menopausal patients in combination with a partial ER antagonist such as tamoxifen (U.S. Pat. No. 5,719,136). PR antagonists such as Mifepristone have also been shown to have bone sparing effects in rodents, and as such may be useful in the treatment of osteoporosis associated with the menopause (Barengolts, et al,Bone, 17, 21, 1995).
- PR antagonists, such as mifepristone and onapristone, have been shown to be effective in a model of hormone dependent prostate cancer, which may indicate their utility in the treatment of this condition in men (Michna, et al,Ann. N. Y. Acad. Sci., 761, 224, 1995).
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- wherein:
- A and B are independent substituents selected from S, CH or N;
- Provided that when A is S, B is CH or N; provided that when B is S, A is CH or N;
- and A and B cannot both be CH;
- and when A and B both equal N, one N may be optionally substituted with an C1 to C6 alkyl group;
- R1 and R2 are independent substituents selected from the group of H, C1 to C6 alkyl, substituted C1 to C6 alkyl, C2 to C6 alkenyl, substituted C2 to C6 alkenyl, C2 to C6 alkynyl, substituted C2 to C6 alkynyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, CORA, or NRBCORA;
- or R1 and R2 are fused to form:
- a) an optionally substituted 3 to 8 membered spirocyclic alkyl ring, preferably a 3 to 6 membered spirocyclic alkyl ring; or
- b) an optionally substituted 3 to 8 membered spirocyclic alkenyl ring, preferably a 3 to 6 membered spirocyclic alkenyl ring; or
- c) an optionally substituted 3 to 8 membered spirocyclic ring containing one to three heteroatoms selected from O, S and N, preferably a 3 to 6 membered spirocyclic ring containing one to three heteroatoms;
- RA is H, C1 to C3 alkyl, substituted C1 to C3 alkyl, aryl, substituted aryl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 aminoalkyl, or substituted C1 to C3 aminoalkyl;
- RB is H, C1 to C3 alkyl, or substituted C1 to C3 alkyl;
- R3 is H, OH, NH2, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C6 alkenyl, substituted C1 to C6 alkenyl, alkynyl, or substituted alkynyl, or CORC;
- RC is H, C1 to C3 alkyl, substituted C1 to C3 alkyl, aryl, substituted aryl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 aminoalkyl, or substituted C1 to C3 aminoalkyl;
-
- X is selected from halogen, CN, C1 to C3 alkyl, substituted C1 to C3 alkyl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 thioalkyl, substituted C1 to C3 thioalkyl, C1 to C3 aminoalkyl, substituted C1 to C3 aminoalkyl, NO2, C1 to C3 perfluoroalkyl, 5 or 6 membered heterocyclic ring containing 1 to 3 heteroatoms, CORD, OCORD, or NRECORD;
- RD is H, C1 to C3 alkyl, substituted C1 to C3 alkyl, aryl, substituted aryl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 aminoalkyl, or substituted C1 to C3 aminoalkyl;
- RE is H, C1 to C3 alkyl, or substituted C1 to C3 alkyl;
- Y and Z are independent independently selected from H, halogen, CN, NO2, C1 to C3 alkoxy, C1 to C3 alkyl, or C1 to C3 thioalkyl; or
- R4 is a five or six membered ring with 1, 2, or 3 heteroatoms from the group including OS, SO, SO2 or NR5 and containing one or two independent substituents from the group including H, halogen, CN, NO2 and C1 to C3 alkyl, C1 to C3 alkoxy, C1 to C3 aminoalkyl, CORF, or NRGCORF;
- RF is H, C1 to C3 alkyl, substituted C1 to C3 alkyl, aryl, substituted aryl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 aminoalkyl, or substituted C1 to C3 aminoalkyl;
- RG is H, C1 to C3 alkyl, or substituted C1 to C3 alkyl;
- R5 is H, or C1 to C3 alkyl;
- Q is O, S, NR6, or CR7R8;
- R6 is from the group including CN, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, or SO2CF3;
- R7 and R8 are independent substituents from the group including H, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, NO2, or CN CO2R9;
- R9 is C1 to C3 alkyl;
-
- W is O or a chemical bond or a pharmaceutically acceptable salt thereof.
- Among the preferred compounds of this invention are those of Formula I wherein:
- A and B are independent substituents S, CH or N,
- provided that when A is S, B is CH or N; and
- when B is S, A is CH or N; and
- A and B cannot both be CH; and
- when A and B both equal N, one N may be optionally substituted with an C1 to C6 alkyl group;
- R1 is H, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, CORA, or NRBCORA;
- R2 is H, C1 to C6 alkyl, substituted C1 to C6 alkyl, C2 to C6 alkenyl, substituted C2 to C6 alkenyl, C2 to C6 alkynyl, substituted C2 to C6 alkynyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, CORA, or NRBCORA;
- or R1 and R2 are fused to form:
- a) an optionally substituted 3 to 8 membered spirocyclic alkyl ring; or
- b) an optionally substituted 3 to 8 membered spirocyclic alkenyl ring; or
- c) an optionally substituted 3 to 8 membered spirocyclic ring containing one to three heteroatoms selected from the group of O, S and N;
- RA is H, C1 to C3 alkyl, substituted C1 to C3 alkyl, aryl, substituted aryl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 aminoalkyl, or substituted C1 to C3 aminoalkyl;
- RB is H, C1 to C3 alkyl, or substituted C1 to C3 alkyl;
- R3 is H, OH, NH2, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C6 alkenyl, substituted C1 to C6 alkenyl, alkynyl, or substituted alkynyl, or CORC;
- RC is H, C1 to C4 alkyl, substituted C1 to C4 alkyl, aryl, substituted aryl, C1 to C4 alkoxy, substituted C1 to C4 alkoxy, C1 to C4 aminoalkyl, or substituted C1 to C4 aminoalkyl;
-
- X is taken from the group including halogen, CN, C1 to C3 alkyl, substituted C1 to C3 alkyl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 thioalkyl, substituted C1 to C3 thioalkyl, C1 to C3 aminoalkyl, substituted C1 to C3 aminoalkyl, NO2, C1 to C3 perfluoroalkyl, 5-membered heterocyclic ring containing 1 to 3 heteroatoms, CORD, OCORD, or NRECORD;
- RD is H, C1 to C3 alkyl, substituted C1 to C3 alkyl, aryl, substituted aryl, C1 to C3 alkoxy, substituted C1 to C3 alkoxy, C1 to C3 aminoalkyl, or substituted C1 to C3 aminoalkyl;
- RE is H, C1 to C3 alkyl, or substituted C1 to C3 alkyl;
- Y and Z are independent substituents taken from the group including H, halogen, CN, NO2, C1 to C3 alkoxy, C1 to C3 alkyl, or C1 to C3 thioalkyl; or
- R4 is a five or six membered ring with 1, 2, or 3 heteroatoms from the group including O, S, SO, SO2 or NR5 and containing one or two independent substituents from the group including H, halogen, CN, NO2 and C1 to C3 alkyl, or C1 to C3 alkoxy;
- R5 is H or C1 to C3 alkyl;
- Q is O, S, NR6, or CR7R8;
- R6 is from the group including CN, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, or SO2CF3;
- R7 and R8 are independent substituents from the group including H, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, NO2, or CN CO2R9;
-
- W is O or a chemical bond or a pharmaceutically acceptable salt thereof.
- Further preferred compounds are those of Formula I wherein:
- A and B are independent substituents from the group including S, CH or N;
- provided that when A is S, B is CH or N; and
- when B is S, A is CH or N; and
- A and B cannot both be CH;
- R1=R2 and are selected from the group which includes C1 to C3 alkyl, substituted C1 to C3 alkyl, or spirocyclic alkyl constructed by fusing R1 and R2 to form a 3 to 6 membered spirocyclic ring;
- R3 is H, OH, NH2, C1 to C6 alkyl, substituted C1 to C6 alkyl, or CORC;
- RC is H, C1 to C4 alkyl, or C1 to C4 alkoxy;
-
- X is selected from the group including halogen, CN, C1 to C3 alkoxy, C1 to C3 alkyl, NO2, C1 to C3 perfluoroalkyl, 5 membered heterocyclic ring containing 1 to 3 heteroatoms, or C1 to C3 thioalkyl;
- Y is a substituent on the 4′ or 5′ position selected from the group of H, halogen, CN, NO2, C1 to C3 alkoxy, C1 to C4 alkyl, or C1 to C3 thioalkyl; or
-
- U is O, S, or NR5;
- R5 is H, or C1 to C3 alkyl, or C1 to C4 CO2alkyl;
- X′ is selected from halogen, CN, NO2, C1 to C3 alkyl or C1 to C3 alkoxy;
- Y′ is H or C1 to C4 alkyl; or
-
- X1 is N or CX2,
- X2 is halogen, CN or NO2;
- Q is O, S, NR6, or CR7R8;
- R6 is selected from the group including CN, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, or SO2CF3;
- R7 and R8 are independent substituents selected from the group of H, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heterocyclic, substituted heterocyclic, NO2, or CN CO2R9;
-
- W is O or a chemical bond; or a pharmaceutically acceptable salt thereof
- Each of the generic and subgeneric groups of compounds herein may further be divided into two further subgroups, one in which Q is oxygen and another wherein Q is selected from S, NR6, or CR7R8.
- The compounds of this invention have been shown to bind to the PR and act as agonists and/or antagonists in functional models, either in-vitro and/or in-vivo. These compounds may be used for contraception, in the treatment of fibroids, endometriosis, breast, uterine, ovarian and prostate cancer, osteoporosis and post menopausal hormone replacement therapy.
- The compounds in the present invention contain a pendent aromatic substituent which may consist of aryl, substituted aryl, heteroaryl or substituted heteroaryl groups.
- The compounds of this invention may contain an asymmetric carbon atom and some of the compounds of this invention may contain one or more asymmetric centers and may thus give rise to optical isomers and diastereomers. While shown without respect to stereochemistry in Formula I, II, and III, the present invention includes such optical isomers and diastereomers; as well as the racemic and resolved, enantiomerically pure R and S stereoisomers; as well as other mixtures of the R and S stereoisomers and pharmaceutically acceptable salts thereof
- The term “alkyl” is used herein to refer to both straight- and branched-chain saturated aliphatic hydrocarbon groups having from one to 8 carbon atoms, preferably from 1 to 6 carbon atoms; “alkenyl” is intended to include both straight- and branched-chain alkyl group having from 2 to 8 carbon atoms, preferably 2 to 6 carbon atoms, with at least one carbon-carbon double bond; “alkynyl” group is intended to cover both straight- and branched-chain alkyl group having from 2 to 8 carbon atoms, preferably 2 to 6 carbon atoms, with at least one carbon-carbon triple bond.
- The terms “substituted alkyl”, “substituted alkenyl”, and “substituted alkynyl” refer to alkyl, alkenyl, and alkynyl as just described having one or more substituents from the group including halogen, CN, OH, NO2, amino, aryl, heterocyclic, substituted aryl, substituted heterocyclic, alkoxy, aryloxy, substituted alkyloxy, alkylcarbonyl, alkylcarboxy, alkylamino, arylthio. These substituents may be attached to any carbon of alkyl, alkenyl, or alkynyl group provided that the attachment constitutes a stable chemical moiety.
- The term “aryl” is used herein to refer to an aromatic system which may be a single ring or multiple aromatic rings fused or linked together as such that at least one part of the fused or linked rings forms the conjugated aromatic system. The aryl groups include but not limited to phenyl, naphthyl, biphenyl, anthryl, tetrohydronaphthyl, phenanthryl.
- The term “substituted aryl” refers to aryl as just defined having one or more substituents from the group including halogen, CN, OH, NO2, amino, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, aryloxy, substituted alkyloxy, alkylcarbonyl, alkylcarboxy, alkylamino, or arylthio.
- The term “heterocyclic” is used herein to describe a stable 4- to 7-membered monocyclic or a stable multicyclic heterocyclic ring which is saturated, partially unsaturated, or unsaturated, and which consists of carbon atoms and from one to four heteroatoms selected from the group including N, O, and S atoms. The N and S atoms may be oxidized. The heterocyclic ring also includes any multicyclic ring in which any of above defined heterocyclic rings is fused to an aryl ring. The heterocyclic ring may be attached at any heteroatom or carbon atom provided the resultant structure is chemically stable. Such heterocyclic groups include, for example, tetrahydrofuran, piperidinyl, piperazinyl, 2-oxopiperidinyl, azepinyl, pyrrolidinyl, imidazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, oxazolyl, isoxazolyl, morpholinyl, indolyl, quinolinyl, thienyl, furyl, benzofuranyl, benzothienyl, thiamorpholinyl, thiamorpholinyl sulfoxide, and isoquinolinyl.
- The term “substituted heterocyclic” is used herein to describe the heterocyclic just defined having one or more substituents selected from the group which includes halogen, CN, OH, NO2, amino, alkyl, substituted alkyl, cycloalkyl, alkenyl, substituted alkenyl, alkynyl, alkoxy, aryloxy, substituted alkyloxy, alkylcarbonyl, alkylcarboxy, alkylamino, or arylthio. The term “alkoxy” is used herein to refer to the OR group, where R is alkyl or substituted alkyl. The term “aryloxy” is used herein to refer to the OR group, where R is aryl or substituted aryl. The term “alkylcarbonyl” is used herein to refer to the RCO group, where R is alkyl or substituted alkyl. The term “alkylcarboxy” is used herein to refer to the COOR group, where R is alkyl or substituted alkyl. The term “aminoalkyl” refers to both secondary and tertiary amines wherein the alkyl or substituted alkyl groups may be either same or different and the point of attachment is on the nitrogen atom. The term “thioalkyl” is used herein to refer to the SR group, where R is alkyl or substituted alkyl. The term “halogen” refers to Cl, Br, F, and I element.
- The compounds of this invention can be prepared following the Schemes illustrated below:
- Processes for Preparing Thiophene Cyclocarbamate Derivatives
-
- Thus the amino thiophene ester 2 was prepared according to a literature procedure involving the Gewald reaction (see Comprehensive Heterocyclic Chemistry II. A Review of the Literature 1982-1995. A. R. Katritsky et al. Vol. 2 page 639), i.e. the reaction of a suitably substituted aromatic acetaldehyde with sulfur and methyl cyanoacetate in refluxing methanol (Scheme 1). Reaction of the 2-amino group with a suitable chloroformate or carbonate affords the protected amine 3. This can be accomplished by allowing 2 to react with a chloroformate or carbonate derivative such as methyl chloroformate, ethyl chloroformate, allyl chloroformate, 2-(trimethylsilyl)ethyl chloroformate or di-tert-butyldicarbonate in a solvent such as benzene, toluene, xylene, dichloromethane, tetrahydrofuran or pyridine. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent and may require the presence of a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine. Treatment of the protected amino compound 3 with an organo-metallic reagent such as a Grignard reagent, an alkyl or aryl-zinc reagent, an alkyl or aryl lithium reagent in an inert solvent (tetrahydrofuran, diethylether) under an inert atmosphere (nitrogen or argon) at a suitable temperature from 0° C. up to reflux temperature of the solvent will then provide the tertiary alcohol 4. Compound 4 may then be subjected to basic conditions to effect ring closure to give the cyclocarbamate derivative 5. Suitable conditions would involve treatment of 4 with a base such as potassium hydroxide in a solvent such as ethanol or potassium t-butoxide in a solvent such as tetrahydrofuran. The reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- Alternatively the carbamate protecting group present in 4 may be removed under conditions appropriate for its removal to afford 6 (Scheme 2). Subsequent ring closure of 6 with a reagent such as phosgene, carbonyldiimidazole or dimethyl carbonate in an appropriate solvent (tetrahydrofuran, dichloromethane, benzene, etc.) also will provide access to 5.
- Alternatively, compound 4 may be dehydrated to afford the isopropene derivative 7 (Scheme 3). Suitable conditions for the dehydration would be the use of a reagent such as acetic anhydride, methanesulfonyl chloride, p-toluenesulfonyl chloride or trifluoromethane sulfonyl chloride or anhydride, in a solvent such as pyridine, tetrahydrofuran, dichloromethane or benzene. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent and may require the presence of a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine. Exposure of 7 to acidic conditions would then afford ring closure to give 5. Suitable conditions would be the use of an acid such as p-toluenesulfonic acid, methanesulfonic acid or camphorsulfonic acid in a solvent such as dichloromethane, benzene, toluene or tetrahydrofuran. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
-
- Alternatively, 10 (Scheme 5) may be treated at low temperature with a reagent such as an alkyl lithium or lithium amide in an inert solvent such as tetrahydrofuran, and then converted to a boronic acid 12 (M═B(OH)2) under the action of trimethyl or triisopropyl borate, or into a stannane via reaction with trimethyltin chloride or bis(trimethyltin). Subsequent reaction of 12 with an aryl or heteroaryl bromide or iodide in the presence of a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate, would then effect conversion into the desired thiophene cyclocarbamate 5.
-
- The amino thiophene compounds 15 (Scheme 6) are prepared according to a literature procedure (Comprehensive Heterocyclic Chemistry II. A Review of the Literature 1982-1995. A. R. Katrisky et al., Vol. 2, page 639) which involves treating a suitably substituted aromatic methyl ketone 13 with phosphorus oxychloride in N,N-dimethyl formamide to afford the chloro cyano olefin derivative 14. Allowing 14 to react with methyl mercaptoacetate in methanol containing sodium methoxide affords the key aminothiophene carboxylate starting material. Reaction of the 2-amino group with a suitable chloroformate or carbonate affords the protected amine 16. This can be accomplished by allowing 15 to react with a chloroformate or carbonate derivative such as methyl chloroformate, ethyl chloroformate, allyl chloroformate, 2-(trimethylsilyl)ethyl chloroformate or di-tert-butyldicarbonate in a solvent such as benzene, toluene, xylene, dichloromethane, tetrahydrofuran or pyridine. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent and may require the presence of a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine. Treatment of the protected amino compound 16 with an organo-metallic reagent such as a Grignard reagent, an alkyl or aryl-zinc reagent, an alkyl or aryl lithium reagent in an inert solvent (tetrahydrofuran, diethylether) under an inert atmosphere (nitrogen or argon) at a suitable temperature from 0° C. up to reflux temperature of the solvent will then provide the tertiary alcohol 17. Compound 17 may then be subjected to basic conditions to effect ring closure to give the cyclocarbamate derivative 18. Suitable conditions would involve treatment of 4 with a base such as potassium hydroxide in a solvent such as ethanol or potassium t-butoxide in tetrahydrofuran. The reaction can be carried out in an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- Alternatively the carbamate protecting group present in 17 may be removed under conditions appropriate for its removal to afford 19 (Scheme 7). Subsequent ring closure of 19 with a reagent such as phosgene, carbonyldiimidazole or dimethyl carbonate in an appropriate solvent (tetrahydrofuran, dichloromethane, benzene, etc.) also will provide access to 18.
- Alternatively, compound 17 may be dehydrated to afford the isopropene derivative 20 (Scheme 8). Suitable conditions for the dehydration would be the use of a reagent such as acetic anhydride, methanesulfonyl chloride, p-toluenesulfonyl chloride or trifluoromethane sulfonyl chloride or anhydride, in a solvent such as pyridine, tetrahydrofuran, dichloromethane or benzene. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent and may require the presence of a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine. Exposure of 20 to acidic conditions would then afford ring closure to give 18. Suitable conditions would be the use of an acid such as p-toluenesulfonic acid, methanesulfonic acid or camphorsulfonic acid in a solvent such as dichloromethane, benzene, toluene or tetrahydrofuran. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
-
- Alternatively, 23 (Scheme 10) may be treated at low temperature with a reagent such as an alkyl lithium or lithium amide in an inert solvent such as tetrahydrofuran, and then converted to a boronic acid 25 (M═B(OH)2) under the action of trimethyl or triisopropyl borate, or into a stannane via reaction with trimethyltin chloride or bis(trimethyltin). Subsequent reaction of 25 with an aryl or heteroaryl bromide or iodide in the presence of a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate, would then effect conversion into the desired thiophene cyclocarbamate 18.
-
- Thiophene thiocyclocarbamates 26 and 27 may be obtained directly by treating 5 and 18 respectively with phosphorus pentasulfide in refluxing pyridine. Alternatively 5 and 18 may be treated with Lawesson's reagent ([2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide]) in refluxing pyridine to afford 26 and 27, respectively.
- Process for Making Thiazole Cyclocarbamate Derivatives
-
-
- Alternatively the carbamate protecting group present in compound 30 may be removed under conditions appropriate for its removal to afford compound 32 as taught by T. W. Greene and P. G. M. Wuts, Protective Groups in Organic Synthesis, second ed., Wiley-Interscience (1991). Subsequent ring closure of compound 32 with a reagent such as phosgene, carbonyl diimidazole or dimethyl carbonate in an appropriate solvent (THF, dichloromethane, benzene, etc) will also provide access to compound 31.
- Alternatively, if compound 30 is a tertiary alcohol then it may be dehydrated to afford the isopropene derivative 33, scheme 3. Suitable conditions for the dehydration would the use of a reagent such as acetic anhydride, methanesulfonyl chloride, p-toluenesulfonyl chloride or trifluoromethane sulfonyl chloride or anhydride, in a solvent such as pyridine, THF, dichloromethane or benzene. The reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent and may require the presence of a base such as 4-dimethylaminopyridine, triethylamine, pyridine or di-isopropyl ethylamine. Exposure of compound 33 to acidic conditions would then afford ring closure to give compound 31. Suitable conditions would be the use of an acid such as p-toluenesulfonic acid, methanesulfonic acid or camphorsulfonic acid in a solvent such as dichloromethane, benzene, toluene or THF and the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent.
- Compound 31 may then be converted into the bromide 34, scheme 15. Suitable conditions would be exposure to bromine or N-bromosuccinimide in a solvent such as dichloromethane, THF or acetic acid, the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent in the presence of an additive such as silica gel. Subsequent reaction of compound 34 with an aryl or heteroaryl boronic acid, boronic acid anhydride or trialkyl stannane then provides access to the desired biaryl compound 35. The reaction can be carried out in a solvent such as acetone, ethanol, benzene, toluene or THF, under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent, in the presence of a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate.
- Alternatively compound 31 may be treated at low temperature with a reagent such as an alkyl lithium or lithium amide in an inert solvent such as THF, and then converted into a boronic acid (M═B(OH)2) 36 under the action of trimethyl or triisopropyl borate, or into a stannane under the action of trimethyltin chloride or bis(trimethyltin), Scheme 16. Subsequent reaction with an aryl or heteroaryl bromide or iodide in the presence of a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate would then effect conversion into the desired compound 35.
- Process for Making Amide Thiophene Derivatives
-
- Thus the amine 37 is converted into a carbamate, such as a tert-butyl carbamate as described in scheme 1 for the preparation of compound 2. Hydrolysis of the ester 38 under basic conditions, for example lithium or sodium hydroxide in THF or methanol at room temperature then gives the acid 39. Conversion of the acid 39 into the acid chloride 40 is accomplished under standard conditions, thionyl chloride or oxalyl chloride either neat or in the presence of a solvent such as dichloromethane and an additive such as a catalytic amount of N,N-dimethylformamide. Compound 40 is then reacted with diazomethane or trimethylsilyldiazomethane in an inert solvent such as THF or dichloromethane, and the product diazoketone 41 is then rearranged in the presence of silver (I) oxide to afford the acid 42. Treatment of compound 42 under conditions that specifically remove the protecting carbamate functionality, for example acidic conditions, will then affect cyclization to give compound 43. Reaction of compound 43 with an alkylating agent such as an alkyl iodide, bromide, tosylate or mesylate, or a bis-alkyl iodide, bromide, tosylate or mesylate, under basic conditions, for example butyl lithium in the presence of N,N,N,N-tetramethylene diamine in a solvent such as THF under an inert atmosphere (nitrogen or argon) at a temperature between −78° C. and the boiling point of the solvent, will then afford the alkylated 44.
- Process for Making Thiazole Derivatives
-
- Hydrolysis of the ester 29 under basic conditions, for example lithium or sodium hydroxide in THF or methanol at room temperature then gives the acid 45. Conversion of the acid 45 into the acid chloride 46 is accomplished under standard conditions, for example thionyl chloride or oxalyl chloride either neat or in the presence of a solvent such as dichloromethane and an additive such as a catalytic amount of N,N-dimethylformamide. Compound 46 is then reacted with diazomethane or trimethylsilyldiazomethane in an inert solvent such as THF or dichloromethane, and the product diazoketone 47 is then rearranged in the presence of silver (I) oxide to afford the acid 48. Treatment of compound 48 under conditions that specifically remove the protecting carbamate functionality, for example acidic conditions, will then affect cyclization to give the heterocycle 49. Reaction of compound 49 with an alkylating agent such as an alkyl iodide, bromide, tosylate or mesylate, or a bis-alkyl iodide, bromide, tosylate or mesylate, under basic conditions, for example butyl lithium in the presence of N,N,N,N-tetramethylene diamine in a solvent such as THF under an inert atmosphere (nitrogen or argon) at a temperature between −78° C. and the boiling point of the solvent, will then afford the alkylated heterocycle 50. Compound 50 may then be converted into the bromide 51. Suitable conditions would be exposure to bromine or N-bromosuccinimide in a solvent such as dichloromethane, THF or acetic acid, the reaction can be carried out under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent in the presence of an additive such as silica gel. Subsequent reaction of compound 51 with an aryl or heteroaryl boronic acid, boronic acid anhydride or trialkyl stannane then provides access to the desired biaryl compound 52. The reaction can be carried out in a solvent such as acetone, ethanol, benzene, toluene or THF, under an inert atmosphere (nitrogen or argon) from 0° C. up to the reflux temperature of the solvent, in the presence of a palladium catalyst such as tetrakis(triphenylphosphine) palladium (0) or palladium acetate and may require an additive such as sodium carbonate, cesium fluoride or potassium phosphate. The thione derivative, compound 53, may be obtained directly by treating 52 with phosphorus pentasulfide in refluxing pyridine. Alternatively 52 may be treated with Lawesson's reagent in refluxing pyridine to afford 53.
- The compounds of the present invention can be used in the form of salts derived from pharmaceutically or physiologically acceptable acids or bases. These salts include, but are not limited to, the following salts with inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid and, as the case may be, such organic acids as acetic acid, oxalic acid, succinic acid, and maleic acid. Other salts include salts with alkali metals or alkaline earth metals, such as sodium, potassium, calcium or magnesium in the form of esters, carbamates and other conventional “pro-drug” forms, which, when administered in such form, convert to the active moiety in vivo.
- This invention includes pharmaceutical compositions and treatments which comprise administering to a mammal a pharmaceutically effective amount of one or more compounds as described above wherein Q is oxygen as antagonists of the progesterone receptor. The invention further provides comparable methods and compositions which utilize one or more compounds herein wherein Q is S, NR6, or CR7R8 as agonists of the progesterone receptor.
- The progesterone receptor antagonists of this invention, used alone or in combination, can be utilized in methods of contraception and the treatment and/or prevention of benign and malignant neoplastic disease. Specific uses of the compounds and pharmaceutical compositions of invention include the treatment and/or prevention of uterine myometrial fibroids, endometriosis, benign prostatic hypertrophy; carcinomas and adenocarcinomas of the endometrium, ovary, breast, colon, prostate, pituitary, meningioma and other hormone-dependent tumors. Additional uses of the present progesterone receptor antagonists include the synchronization of the estrus in livestock.
- The progesterone receptor agonists of this invention, used alone or in combination, can be utilized in methods of contraception and the treatment and/or prevention of dysfunctional bleeding, uterine leiomyomata, endometriosis; polycystic ovary syndrome, carcinomas and adenocarcinomas of the endometrium, ovary, breast, colon, prostate. Additional uses of the invention include stimulation of food intake.
- This invention also includes pharmaceutical compositions comprising one or more compounds of this invention with a pharmaceutically acceptable carrier or excipient. When the compounds are employed for the above utilities, they may be combined with one or more pharmaceutically acceptable carriers or excipients, for example, solvents, diluents and the like, and may be administered orally in such forms as tablets, capsules, dispersible powders, granules, or suspensions containing, for example, from about 0.05 to 5% of suspending agent, syrups containing, for example, from about 10 to 50% of sugar, and elixirs containing, for example, from about 20 to 50% ethanol, and the like, or parenterally in the form of sterile injectable solutions or suspensions containing from about 0.05 to 5% suspending agent in an isotonic medium. Such pharmaceutical preparations may contain, for example, from about 25 to about 90% of the active ingredient in combination with the carrier, more usually between about 5% and 60% by weight.
- The effective dosage of active ingredient employed may vary depending on the particular compound employed, the mode of administration and the severity of the condition being treated. However, in general, satisfactory results are obtained when the compounds of the invention are administered at a daily dosage of from about 0.5 to about 500 mg/kg of animal body weight, preferably given in divided doses two to four times a day, or in a sustained release form. For most large mammals, the total daily dosage is from about 1 to 100 mg, preferably from about 2 to 80 mg. Dosage forms suitable for internal use comprise from about 0.5 to 500 mg of the active compound in intimate admixture with a solid or liquid pharmaceutically acceptable carrier. This dosage regimen may be adjusted to provide the optimal therapeutic response. For example, several divided doses may be administered daily or the dose may be proportionally reduced as indicated by the exigencies of the therapeutic situation.
- These active compounds may be administered orally as well as by intravenous, intramuscular, or subcutaneous routes. Solid carriers include starch, lactose, dicalcium phosphate, microcrystalline cellulose, sucrose and kaolin, while liquid carriers include sterile water, polyethylene glycols, non-ionic surfactants and edible oils such as corn, peanut and sesame oils, as are appropriate to the nature of the active ingredient and the particular form of administration desired. Adjuvents customarily employed in the preparation of pharmaceutical compositions may be advantageously included, such as flavoring agents, coloring agents, preserving agents, and antioxidants, for example, vitamin E, ascorbic acid, BHT and BHA.
- The preferred pharmaceutical compositions from the standpoint of ease of preparation and administration are solid compositions, particularly tablets and hard-filled or liquid-filled capsules. Oral administration of the compounds is preferred.
- These active compounds may also be administered parenterally or intraperitoneally. Solutions or suspensions of these active compounds as a free base or pharmacologically acceptable salt can be prepared in water suitably mixed with a surfactant such as hydroxypropylcellulose. Dispersions can also be prepared in glycerol, liquid, polyethylene glycols and mixtures thereof in oils. Under ordinary conditions of storage and use, these preparations contain a preservative to prevent the growth of microorganisms.
- The pharmaceutical forms suitable for injectable use include sterile aqueous solutions or dispersions and sterile powders for the extemporaneous preparation of sterile injectable solutions or dispersions. In all cases, the form must be sterile and must be fluid to the extent that easy syringe ability exits. It must be stable under conditions of manufacture and storage and must be preserved against the contaminating action of microorganisms such as bacterial and fungi. The carrier can be a solvent or dispersion medium containing, for example, water, ethanol (e.g., glycerol, propylene glycol and liquid polyethylene glycol), suitable mixtures thereof, and vegetable oil.
- The following non-limiting examples are illustrative of exemplary compound 5.
- To a 25° C. solution of 3-chlorostyrene in anhydrous CH2Cl2 (10.0 g, 72.15 mmol) was added a well-stirred solution of Pb(OAc)4 (35.2 g, 79.4 mmol) in trifluoroacetic acid (150 mL), dropwise. The reaction was completed within 30 min of the addition and after being stirred for a further 30 min, the mixture was poured into water, extracted with ether (3×), the combined organic layers were washed with saturated NaHCO3 solution, water, dried (MgSO4), and concentrated to a volume of about 15 ml and immediately used for the following reaction described below.
- To the crude aldehyde, prepared above, in methanol was added a mixture of sulfur (2.55 g, 79.44 mmol), methylcyanoacetate (7.88 g, 79.44 mmol), morpholine (6.92 g, 79.44) and the resulting reaction mixture was refluxed for 16 hours. The unreacted sulfur was filtered off and the filtrates were evaporated leaving behind a black residue. This residue was extracted with ether and washed with H2O. Crystallized from ether/hexane (1:5) to obtain white crystals (3.85 g, 14.3 mmol, 50%), mp 85-87°. 1HNMR (DMSO-d6) δ3.75 (s, 3H), 7.18-7.27 (m, 1H), 7.31-7.42 (m, 3H), 7.53 (s, 1H), 7.62 (s, 1H); MS(+APCI) m/z268(M+H); Anal. Calc. For C12H10ClNO2S: C, 53.83, H, 3.76, N, 5.23. Found: C, 53.57, H, 3.37, N, 5.00.
- To a solution of 2-amino-5-(3-chloro-phenyl)-thiophene-3-carboxylic acid methyl ester (2 g, 7.5 mmol) in anhydrous 1,2-dichloroethane (50 mL) was added at room temperature under nitrogen allyl chloroformate (1.6 mL, 15.1 mmol). The reaction mixture was heated at reflux under nitrogen for 18 hours, cooled to room temperature, and treated with a saturated aqueous sodium bicarbonate solution (100 mL). The organic layer was separated and aqueous layer was extracted with methylene chloride (3×20 mL). The combined organic layers were washed (brine) and dried (MgSO4). After removal of the solvent, the residue was purified by a flash silica gel column (hexane:ethyl acetate/7:1) to give the subtitled compound as an off-white solid (2.14 g, 81%): 1H-NMR (DMSO-d6) δ10.2 (s, 1H), 7.73 (t, 1H, J=1.7 Hz), 7.66 (s, 1H), 7.57 (dt, 1H, J=7.7, 1.7 Hz), 7.41 (t, 1H, J=7.7 Hz), 7.34 (dt, 1H, J=6.8, 1.6 Hz), 6.01 (m, 1H), 5.41 (dd, 1H, J=7.3, 1.6 Hz), 5.29 (dd, 1H, J=10.5, 1.3 Hz), 4.74 (d, 2H, J=5.5 Hz), 3.84 (s, 3H). Anal. Calc. For C16H14ClNO4S: C, 54.63, H, 4.01, N, 3.98. Found: C, 54.56, H, 3.92, N, 3.89.
- To a solution of 2-allenoxycarbonylamino-5-(3-chloro-phenyl)-thiophene-3-carboxylic acid methyl ester (0.1 g, 0.28 mmol) in anhydrous THF was added a solution of methylmagnesium bromide (3.0 M in diethyl ether, 1.5 mL, 4.5 mmol) at room temperature under nitrogen. After stirring at room temperature under nitrogen for 20 minutes, the reaction mixture was treated with brine (10 mL) followed by addition of an aqueous 1N HCl solution (5 mL). Ethyl acetate (20 mL) was added and organic layer was separated, washed 1N with brine (5 mL) and dried over MgSO4. After removal of the solvent, the residue was purified by a flash column (silica gel, hexane:ethyl acetate/5:1) to give carbinol which was used in next step without further purification and characterization.
- A mixture of above crude carbinol, potassium hydroxide (excess) in ethanol was stirred at room temperature under nitrogen overnight. The reaction solution was then acidified by an addition of a cold aqueous 1N HCl solution. Ethyl acetate (20 mL) was added and organic layer was separated, washed with brine (5 mL) and dried (MgSO4). After removal of the solvent, the residue was purified by a silica gel column (hexane:ethyl acetate/2:1) to give the title compound as an off-white solid (16 mg, 19% for two steps): mp 149-150° C.; 1H-NMR (DMSO-d6) δ10.69 (s, 1H), 7.64 (t, 1H, J=1.8 Hz), 7.49 (s, 1H), 7.47 (dt, 1H, J=7.7, 1.4 Hz), 7.39 (t, 1H, J=7.8 Hz), 7.29 (dt, 1H, J=7.8, 1.3 Hz), 1.61 (s, 6H). MS (EI) m/z 293/295 (M+). Anal. Calc. For C14H12ClNO2S: C, 57.24, H, 4.12, N, 4.77. Found: C, 57.27, H, 4.25, N, 4.66.
- 6-(3-chlorophenyl)-1,4-dihydro-4,4-dimethyl-2H-thieno[3,2-d][1,3]oxazine-2-one 3-Chloro-3-(3-chloro-phenyl)-acrylonitrile
- A solution of POCl3 was slowly added to anhydrous DMF over a period of 20 minutes and the temperature was maintained around 30° C. 3′-Chloroacetophenone solution in anhydrous DMF was added to the above solution and the reaction temperature was allowed to rise to around 50° C. Hydroxylamine HCl was added to the reaction solution, portionwise, over 1 hour. A volume of 500 mL of water was added to form precipitate, stirred for 1 hour and precipitate was collected on a Büchner funnel, washed with H2O, and dried to afford a yellow crystalline compound, mp 60-62° C. 1H NMR (DMSO-d6) δ1.60(s, 6H), 7.30 (d, 1H, J=8.41 Hz), 7.41(d, 1H, J=8.41 Hz), 10.47 (s, 1H); MS(+APCI)m/z 213(M+H); Anal. Calc. For C9H9ClN2O2: C, 50.84, H, 4.27, N, 13.17. Found: C, 50.99, H, 4.28, N, 12.98.
- Sodium pellets were slowly added to methanol solution to form NaOMe in situ, then methyl thioglycolate was added over a period of 20 minutes to the methanol solution. A solution of 3-Chloro-3-(3-chloro-phenyl)-acrylonitrile in methanol was added slowly and was brought to reflux for 1 hour. The reaction mixture was cooled to room temperature and methanol was concentrated to 100 mL and 200 mL of water was added, stirred for 30 minutes and the yellow precipitate was collected and washed with water several times to yield a yellow crystalline compound, mp 92-95° C.1H NMR (DMSO-d6) δ1.60 (s, 6H), 7.30 (d, 1H, J=8.41 Hz), 7.41(d, 1H, J=8.41 Hz), 10.47 (s, 1H); MS(+APCI)m/z 213(M+H); Anal. Calc. For C9H9ClN2O2: C, 50.84, H, 4.27, N, 13.17. Found: C, 50.99, H, 4.28, N, 12.98.
- To a solution of 3-Amino-5-(3-chloro-phenyl)-thiophene-2-carboxylic acid methyl ester (51 g, 56.0 mmol) in toluene (200 mL) was added a solution of allyl chloroformate (8.10 g, 67.2 mmol) in toluene (5.0 mL) and the resulting reaction solution was heated under reflux for 3 h. Toluene was stripped down and the crystals were collected and washed with ether/hexane to afford a yellow crystalline compound, mp 101-103° C.1H NMR (DMSO-d6) δ3.85 (s,3H), 4.68-4.71 (d, 2H, J=5.46 Hz), 5.26-5.30 (dd, 1H, J=1.35, 9.84 Hz), 5.36-5.42 (dd, 1H, J=1.57, 15.68 Hz), 5.96(m, 2H), 7.50-7.52 (m, 2H), 7.67-7.71 (m, 1H), 7.79 (s, 1H), 8.10 (s, 1H); MS(+APCI) m/z 352(M+H); Anal. Calc. For C16H14ClNO4S: C, 54.63, H, 4.01, N, 3.97. Found: C, 54.05, H, 4.17, N, 3.84.
- To a solution of 3-Allyloxycarbonylamino-5-(3-chloro-phenyl)-thiophene-2-carboxylic acid methyl ester (5.3 g, 15.1 mmol) in anhydrous THF (30 mL) at room temperature was added a solution of 3.0M MeMgI in ether (20.1 mL, 60.24 mmol). After 30 minutes, the reaction was slowly quenched with H2O (10 mL), treated with saturated NH4OH (100 mL), extracted with ether (200 mL), washed with brine, dried (MgSO4), concentrated, and chromatographed (hexane/ether, 1:4): mp 60-61° C.; 1H NMR (DMSO-d6) δ1.52 (s, 6H), 4.59-4.61 (d, 2H, J=5.35 Hz), 5.22-5.36 (m, 2H), 5.91-6.04 (m, 2H), 7.33-7.67 (m, 5H), 8.89 (s, 1H); MS(EI) m/z 351/353(M+H); Anal. Calc. For C17H18ClNO3S: C, 58.03, H, 5.16, N, 3.98. Found: C, 58.17, H, 5.16, N, 3.97.
- To a solution of [5-(3-Chloro-phenyl)-2-(1-hydroxy-1-methyl-ethyl)-thiophen-3-yl]-carbamic acid allyl ester (0.12 g, 0.34 mmol) in anhydrous THF (5.0 mL) was added KOtBu (0.076 g, 0.068 mmol) and stirred for 15 minutes, quenched with H2O, and in situ crystallization was carried out by adding minimal amount of MeOH to the solution. The white crystals were collected on a Büchner funnel, mp 123-125° C. 1H NMR (DMSO-d6) δ1.64(s, 6H), 7.05(s, 1H), 7.37-7.48(m, 2H), 7.53-7.56(s, 1H), 7.67-7.68 (m,1H), 10.41(s, 1H); MS(EI) m/z 293/295(M+H); Anal. Calc. For C17H18ClNO3S: C, 57.24, H, 4.12, N, 4.77. Found: C, 56.93, H, 3.92, N, 4.97.
- The progestational activity of the current invention was evaluated in the PRE-luciferase assay in CV-1 cells, described below. In-vitro potencies can be in the range 0.01 nM-10,000 nM. In vivo potencies are anticipated to be in the range 1 mg/kg to 30 mg/kg.
- The object of this assay is to determine a compound's progestational or antiprogestational potency based on its effect on PRE-luciferase reporter activity in CV-1 cells co-transfected with human PR and PRE-luciferase plasmids. The materials methods used in the assay are as follows.
- a. Medium
- The growth medium was as follows: DMEM (BioWhittaker) containing 10% (v/v) fetal bovine serum (heat inactivated), 0.1 mM MEM non-essential amino acids, 100 U/ml penicillin, 100 mg/ml streptomycin, and 2 mM GlutaMax (GIBCO, BRL). The experimental medium was as follows: DMEM (BioWhittaker), phenol red-free, containing 10% (v/v) charcoal-stripped fetal bovine serum (heat-inactivated), 0.1 mM MEM non-essential amino acids, 100 U/ml penicillin, 100 mg/ml streptomycin, and 2 mM GlutaMax (GIBCO, BRL).
- b. Cell Culture, Transfection, Treatment, and Luciferase Assay
- Stock CV-1 cells are maintained in growth medium. Co-transfection is done using 1.2×107 cells, 5 mg pLEM plasmid with hPR-B inserted at Sph1 and BamH1 sites, 10 mg pGL3 plasmid with two PREs upstream of the luciferase sequence, and 50 mg sonicated calf thymus DNA as carrier DNA in 250 ml. Electroporation is carried out at 260 V and 1,000 mF in a Biorad Gene Pulser II. After electroporation, cells are resuspended in growth medium and plated in 96-well plate at 40,000 cells/well in 200 μl. Following overnight incubation, the medium is changed to experimental medium. Cells are then treated with reference or test compounds in experimental medium. Compounds are tested for antiprogestational activity in the presence of 3 nM progesterone. Twenty-four hr. after treatment, the medium is discarded, cells are washed three times with D-PBS (GIBCO, BRL). Fifty μl of cell lysis buffer (Promega, Madison, Wis.) is added to each well and the plates are shaken for 15 min in a Titer Plate Shaker (Lab Line Instrument, Inc.). Luciferase activity is measured using luciferase reagents from Promega.
- c. Analysis of Results
- Each treatment consists of at least 4 replicates. Log transformed data are used for analysis of variance and nonlinear dose response curve fitting for both agonist and antagonist modes. Huber weighting is used to downweight the effects of outliers. EC50 or IC50 values are calculated from the retransformed values. JMP software (SAS Institute, Inc.) is used for both one-way analysis of variance and non-linear response analyses.
- d. Reference Compounds
- Progesterone and trimegestone are reference pro gestins and RU486 is the reference antiprogestin. All reference compounds are run in full dose-response curves and the EC50 or IC50 values are calculated.
TABLE 1 Estimated EC50, standard error (SE), and 95% confidence intervals (CI) for reference progestins from three individual studies EC50 95% CI Compound Exp. (nM) SE lower upper Progesterone 1 0.616 0.026 0.509 0.746 2 0.402 0.019 0.323 0.501 3 0.486 0.028 0.371 0.637 Trimegestone 1 0.0075 0.0002 0.0066 0.0085 2 0.0081 0.0003 0.0070 0.0094 3 0.0067 0.0003 0.0055 0.0082 -
TABLE 2 Estimated IC50, standard error (SE), and 95% confident interval (CI) for the antiprogestin, RU486 from three individual studies IC 50 95% CI Compound Exp. (nM) SE lower upper RU486 1 0.028 0.002 0.019 0.042 2 0.037 0.002 0.029 0.048 3 0.019 0.001 0.013 0.027 - Progestational activity: Compounds that increase PRE-luciferase activity significantly (p<0.05) compared to vehicle control are considered active.
- Antiprogestational activity: Compounds that decrease 3 nM progesterone induced PRE-luciferase activity significantly (p<0.05)
- EC50: Concentration of a compound that gives half-maximal increase PRE-luciferase activity (default-nM) with SE.
- IC50: Concentration of a compound that gives half-maximal decrease in 3 nM progesterone induced PRE-luciferase activity (default-nM) with SE.
- All publications cited in this specification are incorporated herein by reference herein. While the invention has been described with reference to a particularly preferred embodiment, it will be appreciated that modifications can be made without departing from the spirit of the invention. Such modifications are intended to fall within the scope of the appended claims.
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2000
- 2000-04-19 US US09/552,036 patent/US6306851B1/en not_active Expired - Fee Related
- 2000-05-01 WO PCT/US2000/011825 patent/WO2000066591A1/en not_active Application Discontinuation
-
2001
- 2001-07-17 US US09/906,875 patent/US6441019B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050288350A1 (en) * | 1999-08-27 | 2005-12-29 | Lin Zhi | Bicyclic androgen and progesterone receptor modulator compounds and methods |
US7696246B2 (en) | 1999-08-27 | 2010-04-13 | Ligand Pharmaceuticals Incorporated | Bicyclic androgen and progesterone receptor modulator compounds and methods |
Also Published As
Publication number | Publication date |
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WO2000066591A1 (en) | 2000-11-09 |
US6441019B2 (en) | 2002-08-27 |
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