CA2184681A1 - Process for preparing substituted n-ethylglycine derivatives - Google Patents

Process for preparing substituted n-ethylglycine derivatives

Info

Publication number
CA2184681A1
CA2184681A1 CA002184681A CA2184681A CA2184681A1 CA 2184681 A1 CA2184681 A1 CA 2184681A1 CA 002184681 A CA002184681 A CA 002184681A CA 2184681 A CA2184681 A CA 2184681A CA 2184681 A1 CA2184681 A1 CA 2184681A1
Authority
CA
Canada
Prior art keywords
formula
compound
protecting group
labile
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002184681A
Other languages
French (fr)
Other versions
CA2184681C (en
Inventor
Gerhard Breipohl
Eugen Uhlmann
David William Will
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of CA2184681A1 publication Critical patent/CA2184681A1/en
Application granted granted Critical
Publication of CA2184681C publication Critical patent/CA2184681C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06139—Dipeptides with the first amino acid being heterocyclic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/001—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof by chemical synthesis
    • C07K14/003—Peptide-nucleic acids (PNAs)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Abstract

Process for preparing substituted N-ethylglycine derivatives Processes are described for preparing substituted N-ethylglycine derivatives of the formula in which PG is an amino protecting group which is labile towards weak acids and is of the urethane type or the trityl type, X is NH or O, and B' is bases which are customary in nucleotide chemistry and whose exocyclic amino and/or hydroxyl groups are protected by suitable known protecting groups, and the salts thereof. The process comprises reacting a compound of the formula in which R is hydrogen or, if X = NH, an acid-labile protecting group, and R1 is a protecting group which is labile towards acids and stable towards amines, and X is defined as above, with a compound of the formula at 0 - 45°C in a suitable solvent, using a coupling reagent which is customary in peptide chemistry, to give a compound of the formula and subsequently converting this compound, by means of eliminating the acid-labile ester protecting group R1 and, for X = NH, by means of simultaneously eliminating the acid-labile protecting group R, under suitable acidic conditions, in a suitable solvent, where appropriate with the addition of cation-capturing agents, into a compound of the formula

Claims (4)

1. A process for preparing substituted N-ethylglycine derivatives of the formula I

(I) in which PG is a labile amino protecting group which is labile towards weak acids and which is of the urethane type or the trityl type, X is NH or O, and B' is bases which are customary in nucleotide chemistry and whose exocyclic amino and/or hydroxyl groups are protected by suitable known protecting groups, and the salts thereof, which comprises a) reacting a compound of the formula II

(II), in which R is hydrogen or, if X = NH, an acid-labile protecting group, and R1 is a protecting group which is labile towards acids and stable towards amines, and X is defined as above, with a compound of the formula III

(III) in which B' is defined as above, at 0 - 45°C in a suitable solvent using a coupling reagent which is customary in peptide chemistry to give a compound of the formula IV

(IV) in which R, X, B' and R1 are defined as above, b) subsequently converting the compound of the formula IV, by means of eliminating the acid-labile ester protecting group R1 and, for X = NH, by means of simultaneously eliminating the acid-labile protecting group R
under suitable acidic conditions, in a suitable solvent, where appropriate with the addition of cation-capturing agents, into a compound of the formula V, with compounds of the formula IV in which X = O being, where appropriate, additionally treated with bases in aqueous medium, (V) in which X and B' are defined as above, c) converting the compound of the formula V, using a suitable reagent in a suitable solvent and using an auxiliary base, into the compound of the formula I and subsequently, where appropriate, converting the latter into its salts.
2. The process for preparing substituted N-ethylglycine derivatives of the formula I as claimed in claim 1, wherein a) a compound of the formula II, in which R is hydrogen, or, if X = NH, Boc, Ddz or Trt and R1 is tert-butyl or (2-chlorophenyl)diphenylmethyl, und X is defined as above, is reacted with a compound of the formula III, in which B' is defined above, at room temperature, in DMF, acetonitrile, dichloromethane or mixtures of these solvents, using carbodiimides, phosphonium reagents, uronium reagents, acid halides or activated esters, to give a compound of the formula IV
in which R, X, B' and R1 are defined as above, b) the compound of the formula IV is subsequently converted, by means of eliminating the acid-labile ester protecting group R1 and, for X =
NH, by means of simultaneously eliminating the acid-labile protecting group R with trifluoroacetic acid in dichloromethane, ethyl acetate or dioxane, where appropriate with the addition of anisole, thiophenol or triethylsilane, into a compound of the formula V, in which X and B' are defined as above, and with the compounds of the formula IV in which X = O being additionally treated, where appropriate, with NaOH or triethylamine in aqueous medium, c) the compound of the formula V is converted, with t-Bumeoc fluoride, Adpoc azide, Bpoc azide, Ddz-(phenyl)carbonate, Trt-Cl, Mtt-Cl, Mmt-Cl, Dmt-Cl or Pixyl-Cl in DMF, NMP, acetonitrile, dichloromethane or mixtures of these solvents, using NEM, DIPEA, pyridine or triethylamine, into the compound of the formula I and subsequently, where appropriate, into its salts.
3. The process for preparing substituted N-ethylglycine derivatives of the formula I as claimed in claim 2, wherein, in the compound of the formula II, R is hydrogen or, if X = NH, Boc, and R1 is tert-butyl.
4. An intermediate of the formula IV, (IV) in which X is NH or O, B' is bases which are customary in nucleotide chemistry and whose exocyclic amino and/or hydroxyl groups are protected by suitable known protecting groups, R is hydrogen or, if X = NH, an acid-labile protecting group, and R1 is a protecting group which is labile towards acids and stable towards amines.
CA002184681A 1995-09-04 1996-09-03 Process for preparing substituted n-ethylglycine derivatives Expired - Fee Related CA2184681C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19532553.2 1995-09-04
DE19532553A DE19532553A1 (en) 1995-09-04 1995-09-04 Process for the preparation of substituted N-ethyl-glycine derivatives

Publications (2)

Publication Number Publication Date
CA2184681A1 true CA2184681A1 (en) 1997-03-05
CA2184681C CA2184681C (en) 2010-01-05

Family

ID=7771182

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002184681A Expired - Fee Related CA2184681C (en) 1995-09-04 1996-09-03 Process for preparing substituted n-ethylglycine derivatives

Country Status (11)

Country Link
US (1) US5817811A (en)
EP (1) EP0761681B1 (en)
JP (1) JP3934708B2 (en)
AT (1) ATE214398T1 (en)
AU (1) AU708034B2 (en)
CA (1) CA2184681C (en)
DE (2) DE19532553A1 (en)
DK (1) DK0761681T3 (en)
ES (1) ES2173230T3 (en)
NO (1) NO313833B1 (en)
PT (1) PT761681E (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6710164B1 (en) 1993-11-22 2004-03-23 Peter E. Nielsen Peptide nucleic acids having enhanced binding affinity, sequence specificity and solubility
US5855911A (en) * 1995-08-29 1999-01-05 Board Of Regents, The University Of Texas System Liposomal phosphodiester, phosphorothioate, and P-ethoxy oligonucleotides
WO1997023497A1 (en) * 1995-12-22 1997-07-03 University Technologies International Inc. Linker arm for solid support oligonucleotide synthesis and process for production thereof
US6043353A (en) * 1995-12-22 2000-03-28 University Technologies International, Inc. Reusable solid support for oligonucleotide synthesis, process for production thereof and process for use thereof
ATE311402T1 (en) * 1996-07-24 2005-12-15 Buchardt Dorte PEPTIDE NUCLEIC ACIDS WITH INCREASED BINDING AFFINITY, SEQUENCE SPECIFICITY AND SOLUBILITY
US6977244B2 (en) 1996-10-04 2005-12-20 Board Of Regents, The University Of Texas Systems Inhibition of Bcl-2 protein expression by liposomal antisense oligodeoxynucleotides
DE19640974A1 (en) * 1996-10-04 1998-04-16 Bayer Ag Building blocks for DNA / PNA cooligomers
DE59810914D1 (en) * 1997-05-14 2004-04-08 Morphochem Ag METHOD FOR PRODUCING POLYMERS HAVING NUCLEO BASES AS SIDE GROUPS
US7285288B1 (en) 1997-10-03 2007-10-23 Board Of Regents, The University Of Texas System Inhibition of Bcl-2 protein expression by liposomal antisense oligodeoxynucleotides
US7704962B1 (en) 1997-10-03 2010-04-27 Board Of Regents, The University Of Texas System Small oligonucleotides with anti-tumor activity
US7135564B1 (en) * 1998-07-02 2006-11-14 University Technologies International Inc. Reusable solid support for oligonucleotide synthesis
JP2002520008A (en) * 1998-07-09 2002-07-09 バイオセプト インコーポレイテッド Use of an improved universal library of peptide nucleic acids to optimize DNA sequence hybridization
MXPA01010232A (en) * 1999-04-13 2002-03-27 Basf Ag Integrin receptor ligands.
JP4408628B2 (en) * 2001-03-09 2010-02-03 ボストン プローブス，インコーポレイテッド Methods, kits, and compositions suitable for combinatorial oligomers and libraries for their preparation
US6541626B2 (en) * 2001-04-17 2003-04-01 Isis Pharmaceuticals, Inc. Process for selective N-acylation of purine nucleosides
KR20030084444A (en) * 2002-04-26 2003-11-01 주식회사 파나진 A Novel Monomer For Synthesis of PNA Oligomer And A Process For Producing The Same
EP1585824A4 (en) 2002-11-21 2008-01-02 Epict Technologies Preparation and use of single-stranded transcription substrates for synthesis of transcription products corresponding to target sequences
KR101354692B1 (en) * 2010-11-26 2014-02-06 서울대학교산학협력단 Oligomer and the synthesis of the oligomer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4408534A1 (en) * 1994-03-14 1995-09-28 Hoechst Ag Substituted N-ethyl-glycine derivatives for the production of PNA and PNA / DNA hybrids
DE4408528A1 (en) * 1994-03-14 1995-09-28 Hoechst Ag Peptide oligonucleotide derivatives, their preparation and use
DE4421536A1 (en) * 1994-06-20 1995-12-21 Hoechst Ag Phenyl-substituted alkenylcarboxylic acid guanidines bearing perfluoroalkyl groups, processes for their preparation, their use as medicaments or diagnostic agents, and medicaments containing them
WO1996040709A1 (en) * 1995-06-07 1996-12-19 Perseptive Biosystems, Inc. Pna-dna chimeras and pna synthons for their preparation

Also Published As

Publication number Publication date
NO963677D0 (en) 1996-09-03
DK0761681T3 (en) 2002-07-08
AU708034B2 (en) 1999-07-29
EP0761681A2 (en) 1997-03-12
US5817811A (en) 1998-10-06
ATE214398T1 (en) 2002-03-15
AU6440896A (en) 1997-03-06
EP0761681A3 (en) 1997-07-09
CA2184681C (en) 2010-01-05
NO963677L (en) 1997-03-05
JPH09124572A (en) 1997-05-13
NO313833B1 (en) 2002-12-09
DE19532553A1 (en) 1997-03-06
JP3934708B2 (en) 2007-06-20
DE59608867D1 (en) 2002-04-18
EP0761681B1 (en) 2002-03-13
ES2173230T3 (en) 2002-10-16
PT761681E (en) 2002-08-30

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Effective date: 20150903