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公开(公告)号:EP0923557A4
公开(公告)日:1999-12-08
申请号:EP97937187
申请日:1997-08-08
发明人: DEVINE PAUL N , DOLLING ULF H , FREY LISA F , TILLYER RICHARD D , TSCHAEN DAVID M , KATO YOSHIAKI
IPC分类号: C07D221/04 , A61K31/00 , A61K31/42 , A61K31/421 , A61K31/423 , A61K31/435 , A61P43/00 , C07D263/52 , C07D405/04 , C07D405/06 , C07D405/12 , C07D413/06 , C07D413/14 , C07D221/02 , A61K31/335 , C07D471/00
CPC分类号: C07D405/04
摘要: This invention relates to a key intermediate in the synthesis of an endothelin antagonist, the synthesis of this key intermediate and the synthesis of an endothelin antagonist using this intermediate in a stereoselective deoxygenation reaction.