发明公开
EP0085900A2 Process for the preparation of 6-methyl-delta-4,6-3-keto steroids
失效
一种用于6-甲基Δ-4.6-3酮基类固醇的制备方法。
- 专利标题: Process for the preparation of 6-methyl-delta-4,6-3-keto steroids
- 专利标题(中): 一种用于6-甲基Δ-4.6-3酮基类固醇的制备方法。
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申请号: EP83100734.9申请日: 1983-01-27
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公开(公告)号: EP0085900A2公开(公告)日: 1983-08-17
- 发明人: Annen, Klaus, Dr. , Laurent, Henry, Dr. , Hofmeister, Helmut, Dr. , Wiechert, Rudolf, Prof. Dr.
- 申请人: SCHERING AKTIENGESELLSCHAFT
- 申请人地址: 13342 Berlin DE
- 专利权人: SCHERING AKTIENGESELLSCHAFT
- 当前专利权人: SCHERING AKTIENGESELLSCHAFT
- 当前专利权人地址: 13342 Berlin DE
- 代理机构: Coulson, Antony John
- 优先权: DE3204281 19820205
- 主分类号: C07J1/00
- IPC分类号: C07J1/00 ; C07J5/00 ; C07J7/00 ; C07J21/00
摘要:
A process for preparing 6-methyl-Δ 4,6 -3-keto steroids of
wherein X is
, comprises reacting a corresponding Δ 4 -3-keto steroid with methoxymethyl acetate (CH 3 -O-CH 2 -OAc) in an inert solvent at temperatures above room temperature in the presence of an alkali metal acetate.
wherein X is
, comprises reacting a corresponding Δ 4 -3-keto steroid with methoxymethyl acetate (CH 3 -O-CH 2 -OAc) in an inert solvent at temperatures above room temperature in the presence of an alkali metal acetate.
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