发明授权
- 专利标题： Piperazino quinazoline bronchodilators
- 专利标题（中）： 哌嗪嗪喹唑啉支气管扩张剂
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申请号： US581830申请日： 1975-05-29
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公开(公告)号： US3966936A公开(公告)日： 1976-06-29
- 发明人: Timothy H. Cronin , Hans-Jurgen E. Hess
- 申请人： Timothy H. Cronin , Hans-Jurgen E. Hess
- 申请人地址： NY New York
- 专利权人： Pfizer Inc.
- 当前专利权人： Pfizer Inc.
- 当前专利权人地址： NY New York
- 主分类号： A61K31/495
- IPC分类号： A61K31/495 ; A61K31/505
摘要：
A series of novel 4-piperazino-6,7-dialkoxyquinazolines and 1-piperazino-6,7-dialkoxyisoquinolines have been prepared, including their acid addition salts. These compounds are useful in therapy as bronchodilators and as smooth muscle relaxants. Methods for their preparation from known compounds are provided.
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