发明公开
EP0355395A1 Process for the preparation of intermediates for the synthesis of diltiazem
失效
Verfahren zur Herstellung von Zwischenprodukten in der Synthese von Diltiazem。
- 专利标题: Process for the preparation of intermediates for the synthesis of diltiazem
- 专利标题(中): Verfahren zur Herstellung von Zwischenprodukten in der Synthese von Diltiazem。
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申请号: EP89113136.9申请日: 1989-07-18
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公开(公告)号: EP0355395A1公开(公告)日: 1990-02-28
- 发明人: Cavicchioli, Silvia , Paiocchi, Maurizio , Giordano, Claudio
- 申请人: ZAMBON GROUP S.p.A.
- 申请人地址: Via della Chimica, 9 I-36100 Vicenza IT
- 专利权人: ZAMBON GROUP S.p.A.
- 当前专利权人: ZAMBON GROUP S.p.A.
- 当前专利权人地址: Via della Chimica, 9 I-36100 Vicenza IT
- 优先权: IT2147988 19880726
- 主分类号: C07D281/10
- IPC分类号: C07D281/10
摘要:
Compound of formula III, which is an intermediate in the synthesis of diltiazem, is prepared by N-alkylation of the corresponding N-H derivative with 2-dimethylaminoethanol in an inert solvant and in presence of methanesulphonyl chloride and a base.
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