| 发明名称 |
VERFAHREN ZUR HERSTELLUNG VON 21-HYDROXYPREGNA-4,16-DIEN-3,20-DIONEN |
| 摘要 |
17-Keto steroids (I) in their protected form (IIa or IIb) are reacted with a metalated olefin (VI) to give a 21-aldehyde (IV) which is readily transformed to a 16-unsaturated pregnane (V) which is useful in the production of commercially important substituted corticoids. |
| 申请公布号 |
DE2920290(A1) |
申请公布日期 |
1979.12.06 |
| 申请号 |
DE19792920290 |
申请日期 |
1979.05.18 |
| 申请人 |
THE UPJOHN CO. |
发明人 |
JAMES HESSLER,EDWARD;HENRY VANRHEENEN,VERLAN |
| 分类号 |
C07C41/42;C07C43/17;C07J1/00;C07J5/00;C07J13/00;C07J21/00;C07J31/00;C07J41/00;(IPC1-7):07J5/00 |
主分类号 |
C07C41/42 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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