[EN] PROCESS FOR THE PREPARATION OF 17ß-SUBSTITUTED-3-OXO-4-AZA-5ALPHA-ANDROSTANE DERIVATIVES [FR] PROCEDE DE PREPARATION DE DERIVES DE 17ss-SUBSTITUE-3-OXO-4-AZA-5ALPHA-ANDROSTANE
[EN] PROCESS FOR THE PREPARATION OF 17ß-SUBSTITUTED-3-OXO-4-AZA-5ALPHA-ANDROSTANE DERIVATIVES [FR] PROCEDE DE PREPARATION DE DERIVES DE 17ss-SUBSTITUE-3-OXO-4-AZA-5ALPHA-ANDROSTANE
[EN] PROCESS FOR THE PREPARATION OF 17ß-SUBSTITUTED-3-OXO-4-AZA-5ALPHA-ANDROSTANE DERIVATIVES<br/>[FR] PROCEDE DE PREPARATION DE DERIVES DE 17ss-SUBSTITUE-3-OXO-4-AZA-5ALPHA-ANDROSTANE
申请人:RANBAXY LAB LTD
公开号:WO2005075497A1
公开(公告)日:2005-08-18
Process for the preparation of 17ß-substituted-3-oxo-4-aza-5α-androstane derivatives, which are useful intermediates for the synthesis of 3-oxo-4-aza-5α-androst-1-ene derivatives including finasteride, is provided.