| 发明名称 |
2,3-DIHYDRO-1-(8-METHYL-1,2,4-TRIAZOLO-[4,3-B] PYRIDAZIN-6-YL)-4(1H)-PYRIDINONE |
| 摘要 |
2,3-Dihydro-1-(8-methyl-1,2,4-triazolo¢4,3-b!pyridazin-6-yl)-4(1H)-pyridinone, as shown below, has been prepared in substantially pure form and has been found to be useful for alleviating bronchial spasms in mammals. <IMG> Synthesis of this material through phenylselenyl intermediates is described.
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| 申请公布号 |
CA1335994(C) |
申请公布日期 |
1995.06.20 |
| 申请号 |
CA19870538692 |
申请日期 |
1987.06.03 |
| 申请人 |
MERRELL DOW PHARMACEUTICALS INC. |
发明人 |
CREGGE, ROBERT J. |
| 分类号 |
A61K31/50;A61P11/08;C07D487/04;(IPC1-7):C07D487/04 |
主分类号 |
A61K31/50 |
| 代理机构 |
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