申请人:Gruppo Lepetit S.p.A.
公开号:US04016162A1
公开(公告)日:1977-04-05
6-Morpholino-3-substituted phenyl triazolopyridazine compounds such as 8-methyl-6-morpholino-3-phenyl-s-triazolo[4,3-b]pyridazine or 8-methyl-6-morpholino-3-(3,4,5-trimethoxyphenyl)-s-triazolo[4,3-b]pyridazi ne are prepared by the reaction of the corresponding substituted benzoyl halide with a 3-hydrazino-6-morpholinopyridazine in the presence of a hydrogen chloride acceptor or by the reaction of a 3-halo-6-morpholinopyridazine with a corresponding substituted benzoyl hydrazide. The compounds have pharmacological activity as bronchodilators.
这些化合物,如8-甲基-6-吗啡啶基-3-苯基-s-三唑并[4,3-b]吡啶嗪或8-甲基-6-吗啡啶基-3-(3,4,5-三甲氧基苯基)-s-三唑并[4,3-b]吡啶嗪,是通过相应取代苯甲酰卤与3-氢唑基-6-吗啡啶基吡啶嗪在氯化氢受体存在下的反应或3-卤代-6-吗啡啶基吡啶嗪与相应取代苯甲酰肼的反应制备的。这些化合物具有作为支气管扩张剂的药理活性。