Modified oligodeoxyribonucleotide 3'--NHP (O) (O.sup.-) O-5' phosphoramidates were synthesized on a solid phase support. The phosphoramidate analogs were found to have significantly increased resistance toward phosphodiesterase digestion. Thermal dissociation experiments demonstrated...http://www.google.com/patents/US5726297?utm_source=gb-gplus-sharePatent US5726297 - Oligodeoxyribonucleotide N3' P5' phosphoramidates
