Synthesis of N-Substituted 3-Oxo-17b- carboxamide-4-aza-5a-androstanes and the Tautomerism of 3-Oxo-4-aza-5-androstenes
摘要:
An N-aryl-3-oxo-4-aza-5 alpha-androst-1-ene-17 beta-carboxamide and three N-aryl or alkyl substituted 17 alpha-hydroxy-3-oxo-4-aza-5 alpha -androstane-17 beta-carboxamides were synthesized as antiandrogen candidates from 3-oxoandrost-4-ene-17 beta-carboxylic acid and androst-4-ene-3,17-dione respectively. The chemo- and stereoselective reduction of 3-oxo-4-aza-5-ene intermediates with formic acid and their tautomerism in a solution of chloroform and methanol were described.
Synthesis of N-Substituted 3-Oxo-17b- carboxamide-4-aza-5a-androstanes and the Tautomerism of 3-Oxo-4-aza-5-androstenes
摘要:
An N-aryl-3-oxo-4-aza-5 alpha-androst-1-ene-17 beta-carboxamide and three N-aryl or alkyl substituted 17 alpha-hydroxy-3-oxo-4-aza-5 alpha -androstane-17 beta-carboxamides were synthesized as antiandrogen candidates from 3-oxoandrost-4-ene-17 beta-carboxylic acid and androst-4-ene-3,17-dione respectively. The chemo- and stereoselective reduction of 3-oxo-4-aza-5-ene intermediates with formic acid and their tautomerism in a solution of chloroform and methanol were described.