发明名称 |
Process and new intermediates for the preparation of steroids with a progestogen activity |
摘要 |
The present invention relates to a new process of synthesis and to some new intermediates for the preparation of steroids with progestogen activity, more particularly, for the preparation of Desogestrel of formula (1). Said process is characterized by the regioselective reduction of the compound of formula (II) to give the intermediate of formula (III).
|
申请公布号 |
US2005234251(A1) |
申请公布日期 |
2005.10.20 |
申请号 |
US20050523058 |
申请日期 |
2005.02.02 |
申请人 |
POLI INDUSTRIA CHEMICA SPA |
发明人 |
GRISENTI PARIDE;PECORA FABIO;VERZA ELISA;LEONI MASSIMO;BOSSI LAURA |
分类号 |
C07J1/00;C07J11/00;C07J21/00;(IPC1-7):C07J1/00 |
主分类号 |
C07J1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|