PROCESS TO PREPARE ANDROST-4-EN-17-CARBOXYLIC ACID
申请人:PHARMACIA & UPJOHN COMPANY
公开号:EP1220867A1
公开(公告)日:2002-07-10
US6410760B1
申请人:——
公开号:US6410760B1
公开(公告)日:2002-06-25
[EN] PROCESS TO PREPARE ANDROST-4-EN-17-CARBOXYLIC ACID CROSS-REFERENCE TO RELATED APPLICATIONS<br/>[FR] PROCEDE DE PREPARATION DE L'ACIDE ANDROST-4-EN-17-CARBOXYLIQUE
申请人:UPJOHN CO
公开号:WO2001027133A1
公开(公告)日:2001-04-19
The process of the present invention transforms a steroidal ketone of formula (III) to androst-4-en-17β-carboxylic acid (IV) by reaction with K2SO5•KHSO4•K2SO4.