This invention relates to N-phenylpyridone derivatives which have inotropic, vasodilator and bronchodilator activity. A compound of the invention is 5-methyl-6-[4-(4-oxo-1,4-dihydropyridin-1-yl)phenyl]-4,5-dihydro-3(2H)pyri dazinone.
本发明涉及具有肌力增强、血管扩张和支气管扩张活性的N-苯基
吡啶酮衍
生物。该发明的一种化合物是5-甲基-6-[4-(4-氧代-1,4-
二氢吡啶-1-基)苯基]-4,5-二氢-3(2H)
吡啶酮。