申请人:Warner-Lambert Company
公开号:US04663326A1
公开(公告)日:1987-05-05
Various novel analogs of pyrazolo[4,3d]pyrimidine-5,7-(4H,6H)diones and also 5-thione-7-ones, novel methods of synthesis therefor, compositions and uses are the present invention. For example, the novel 5,7-diones and 5-thione-7-ones are useful for stimulating the central nervous system reversing bronchoconstriction, and as cardiac stimulants cardiotonic agents.
本发明涉及吡唑并[4,3d]嘧啶-5,7-(4H,6H)二酮和5-硫代-7-酮的各种新型类似物,以及用于其合成的新方法、组合物和用途。例如,新型的5,7-二酮和5-硫代-7-酮可用于刺激中枢神经系统、逆转支气管痉挛,并作为心脏兴奋剂和心力衰竭药物。