| 发明名称 |
Process for the preparation of 17{62 -hydroxy-3-oxo-17{60 -pregn-4-ene-21-carboxylic acid {65 -lactone |
| 摘要 |
A new process utilizing certain novel intermediates for the preparation of 17 beta -hydroxy-3-oxo-17 alpha -pregn-4-ene-21-carboxylic acid gamma -lactone is described herein. The procedure utilizes readily available and inexpensive sarsasaponin as starting material.
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| 申请公布号 |
US4057543(A) |
申请公布日期 |
1977.11.08 |
| 申请号 |
US19760701463 |
申请日期 |
1976.07.01 |
| 申请人 |
G. D. SEARLE & CO. |
发明人 |
DRYDEN, JR., HUGH L.;MARKOS, CHARLES S. |
| 分类号 |
C07J1/00;C07J13/00;C07J21/00;C07J41/00;C07J71/00;(IPC1-7):C07J71/00 |
主分类号 |
C07J1/00 |
| 代理机构 |
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