申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US04734429A1
公开(公告)日:1988-03-29
The present invention is directed to a group of methylated tetrahydro cyclohepta[1,2-c:4,3-c']dipyrazoles and benzo[1,2-c:4,3-c']dipyrazoles useful as bronchodilators. The compounds are prepared by the reaction of an appropriate hydrazine with an appropriate 1,3-diketone or with a compound that is chemically equivalent to a 1,3-diketone.
本发明涉及一组甲基化的四氢环庚[1,2-c:4,3-c']二吡唑和苯并[1,2-c:4,3-c']二吡唑,作为支气管扩张剂有用。这些化合物是通过将适当的肼与适当的1,3-二酮或与化学上等效于1,3-二酮的化合物反应制备的。