发明名称 |
Process for the Production of 3-Oxo-pregn-4-ene-21,17-carbolactones by the Metal-Free Oxidation of 17-(3-Hydroxypropyl)-3,17-dihydroxyandrostanes |
摘要 |
This invention relates to processes for the production of 3-oxo-pregnane-21,17-carbolactones of formula II
as well as 3-oxo-pregn-4-ene-21,17-carbolactones of formula III
by the metal-free oxidation of 17-(3-hydroxypropyl)-3,17-dihydroxyandrostanes of formula I In addition, the invention relates to the dichloromethane hemisolvate of 6²,7²;15²,16²-dimethylene-3-oxo-17±-pregnan-5²-ol-21,17-carbolactone (IV) as such as well as to a process for the production of drospirenone. |
申请公布号 |
EP2527356(A3) |
申请公布日期 |
2014.04.09 |
申请号 |
EP20120165450 |
申请日期 |
2006.07.20 |
申请人 |
BAYER PHARMA AKTIENGESELLSCHAFT |
发明人 |
SEBA, HARTMUT;SEILZ, CARSTEN |
分类号 |
C07J53/00 |
主分类号 |
C07J53/00 |
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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