发明授权
US3658814A 2-(omega-chloroalkyl)-6-aryl substituted-4 5-dihydropyridazin(2h)-3-one
失效
2-（OMEGA-CHLOROALKYL）-6-氨基取代的4-二氢吡啶并（2H）-3-ONE
- 专利标题： 2-(omega-chloroalkyl)-6-aryl substituted-4 5-dihydropyridazin(2h)-3-one
- 专利标题（中）： 2-（OMEGA-CHLOROALKYL）-6-氨基取代的4-二氢吡啶并（2H）-3-ONE
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申请号： US3658814D申请日： 1970-03-17
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公开(公告)号： US3658814A公开(公告)日： 1972-04-25
- 发明人: HOULIHAN WILLIAM J
- 申请人： SANDOZ AG
- 专利权人： Sandoz Ag
- 当前专利权人： Sandoz Ag
- 优先权： US2043570 1970-03-17
- 主分类号： C07D237/04
- IPC分类号： C07D237/04 ; C07D409/04 ; C07D51/04
摘要：
2-(WI-CHLOROALKYL)-6-ARYL OR HETEROCYCLIC SUBSTITUTED4,5-DIHYDROPYRIDAZIN(2H)-3-ONES, E.G., 2-(4-CHLOROBUTYL)6-(2-THIENYL)-4,5-DIHYDROPYRIDAZIN(2H)-3-ONES, ARE PREPARED BY CHLORINATING THE CONDENSATION PRODUCT FORMED BY CONDENSING W-HYDRAZINOALKANOLS WITH ARYL OR HETEROCYCLIC-Y-KETOBUTYRIC ACIDS AND ARE USEFUL AS INTERMEDIATES IN PREPARING ANTI-DEPRESSANTS AND ANALGESICS.
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