发明授权
US4082764A Methods for the production of 4H-s-triazolo[4,3-a][1,4]benzodiazepine
5N-oxides
失效
生产4H-S-三唑(4,3-A)+8,1,4)苯并咪唑5N-氧化物的方法
- 专利标题: Methods for the production of 4H-s-triazolo[4,3-a][1,4]benzodiazepine 5N-oxides
- 专利标题(中): 生产4H-S-三唑(4,3-A)+8,1,4)苯并咪唑5N-氧化物的方法
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申请号: US612745申请日: 1975-09-12
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公开(公告)号: US4082764A公开(公告)日: 1978-04-04
- 发明人: Yutaka Kuwada , Kanji Meguro , Hiroyuki Tawada
- 申请人: Yutaka Kuwada , Kanji Meguro , Hiroyuki Tawada
- 申请人地址: JA Osaka
- 专利权人: Takeda Chemical Industries, Ltd.
- 当前专利权人: Takeda Chemical Industries, Ltd.
- 当前专利权人地址: JA Osaka
- 优先权: JA50/39700 19710605
- 主分类号: A61K
- IPC分类号: A61K20060101 ; A61K31/55 ; C07D20060101 ; C07D239/92 ; C07D243/00 ; C07D249/00 ; C07D249/08 ; C07D487/04
摘要:
The title compounds are prepared by reacting a 3-amino-3,4-dihydro-4-hydroxy-4-phenylquinazoline with a reactive derivative of a halogenoacetic acid, reacting the resultant halogenoacetyl derivative with a weak acid, reacting the resultant 2-(3-halomethyl-s-triazol-4-yl)benzophenone with hydroxylamine and subjecting the resultant 2-(3-hydroxyamino-methyl-s-triazol-4-yl)benzophenone to dehydration to effect ring closure.
公开/授权文献
- US5144045A Phosphocholine derivative inhibitors of phospholipase A.sub.2 公开/授权日:1992-09-01
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