NITROGENOUS HETEROCYCLIC COMPOUND.

摘要

A nitrogenous heterocyclic compound represented by general formula (I) or a pharmacologically acceptable salt thereof, efficacious in treating various ischemic cardiac diseases, wherein ring A represents a benzene, pyridine or cyclohexane ring; ring B represents a pyridine, pyrimidine or imidazole ring; R<1>, R<2>, R<3> and R<4> represent each hydrogen, halogen, lower alkoxy, etc.; R<5> represents -NR<1><1>R<1><2> (wherein R<1><1> and R<1><2> represent each hydrogen, lower alkyl, etc.), etc.; and R<6> represents (a) (wherein R<1><9> represents hydrogen, lower alkyl, etc.; R<2><0>, R<2><1> and R<2><2> represent each hydrogen, halogen, hydroxy, etc.; and r represents an integer of 0.1 to 8), etc.