ENZYMATIC PROCESS FOR OBTAINING 17 ALPHA- MONOESTERS OF CORTEXOLONE AND/OR ITS 9,11- DEHYDRODERIVATIVES
申请人:Cosmo SPA
公开号:US20140179654A1
公开(公告)日:2014-06-26
The present invention refers to a new enzymatic process for obtaining 17α-monoesters of cortexolone and/or its 9,11-dehydroderivatives starting from the corresponding 17α,21-diesters which comprises an enzymatic alcoholysis reaction.
Furthermore, the present invention refers to new crystalline forms of cortexolone 17α-propionate and 9,11-dehydro-cortexolone 17α-butanoate.