发明授权
- 专利标题: Demethylation of 14-hydroxy substituted alkaloid derivatives
- 专利标题(中): 14羟基取代生物碱衍生物脱甲基化
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申请号: US12292704申请日: 2008-11-24
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公开(公告)号: US08158793B2公开(公告)日: 2012-04-17
- 发明人: Erik Heinz Lauterbach , Thomas Dinkel , Sabrina Heller , Andreas Bertogg
- 申请人: Erik Heinz Lauterbach , Thomas Dinkel , Sabrina Heller , Andreas Bertogg
- 申请人地址: CH Zofingen
- 专利权人: Siegfried Ltd.
- 当前专利权人: Siegfried Ltd.
- 当前专利权人地址: CH Zofingen
- 代理机构: The Nath Law Group
- 代理商 Susanne M. Hopkins; Tanya E. Harkins
- 优先权: EP07121537 20071126
- 主分类号: C07D489/08
- IPC分类号: C07D489/08 ; C07F7/02
摘要:
The present invention is directed to a method for demethylating 14-hydroxy substituted alkaloid derivatives, in particular of 14-hydroxy-17-methyl-4,5-epoxymorphinane-6-on-derivatives. This is achieved by reacting a starting compound with a compound of general formula R1OOC—N═N—COOR2 in a suitable solvent.
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