| 摘要 |
Novel microbial transformation process to selectively convert steroids with or without 17-alkyl side chains of from 2 to 10 carbon atoms, inclusive, to 3a alpha -H-4 alpha -[3'-propionic acid]-7a beta -methylhexahydro-1,5-indanedione having the following structure: <IMAGE> I This compound can be used as an intermediate to make useful 19-nor steroids. |
