发明名称 |
3,6,7,8-Substituted-s-triazolo[4,3-b]pyridazines as bronchodilators |
摘要 |
3,6,7,8-Substituted-s-triazolo-pyridazine compounds such as 7,8-dimethyl-6-morpholino-3-methyl-s-triazolo[4,3-b]pyridazine or 7,8-dimethyl-6-(1-pyrrolidinyl)-3-(isopropyl)-s-triazolo-[4,3-b]pyrida zine are prepared by the reaction of a carboxylic acid with a substituted 3-hydrazino-6-halo-pyridazine followed by the reaction of the resulting 6-halotriazolopyridazine with a corresponding base. The compounds have pharmacological activity as bronchodilators.
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申请公布号 |
US4526890(A) |
申请公布日期 |
1985.07.02 |
申请号 |
US19810251794 |
申请日期 |
1981.04.07 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
PEET, NORTON P.;SUNDER, SHYAM |
分类号 |
C07D487/04;C07D487/08;(IPC1-7):C07D487/04;A61K31/495;A61K31/535;A61K31/55 |
主分类号 |
C07D487/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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