申请人:Orion Corporation/Orion Pharmaceutica
公开号:US05151420A1
公开(公告)日:1992-09-29
Substituted benzylideneiminophyenylpyridazinones or dihydropyridazinones of formula I ##STR1## in which R.sub.1 and R.sub.8 independently mean hydrogen or lower alkyl, R2 is hydrogen, lower alkyl, trifluoromethyl, hydroxy alkyl, halogen alkyl, alkoxy alkyl, pyridyl, furyl, thienyl or cycloalkyl or one of optionally substituted groups; aryl, aralkyl, aralkenyl or nitrogen containing heterocyclic ring joining through an alkyl or alkenyl group and R.sub.3, R.sub.4 and R.sub.5 independently mean hydrogen, lower alkyl, hydroxy alkyl, halogen, hydroxy, alkoxy, acyloxy, aroyloxy, formyl, acyl, cyano, amino, carboxy or trifluoromethyl, R.sub.6 and R.sub.7 independently mean hydrogen, amino, lower alkyl, hydroxy, nitro or cyano or R.sub.2 and R.sub.7 together form a --CH.sub.2 --NH-- or --CH.dbd.N-- group and A means phenyl, naphtyl or a nitrogen containing heterocyclic ring. The compounds may be used in the treatment of congestive heart failure.
式I中的取代苄亚甲基亚胺基吡啶并二氢吡啉酮,其中R.sub.1和R.sub.8独立表示氢或较低的烷基,R2为氢、较低的烷基、三氟甲基、羟基烷基、卤代烷基、烷氧基烷基、吡啶基、呋喃基、噻吩基或环烷基或其中一个取代基;芳基、芳基烷基、芳基烯基或通过烷基或烯基连接的含氮杂环,R.sub.3、R.sub.4和R.sub.5独立表示氢、较低的烷基、羟基烷基、卤素、羟基、烷氧基、酰氧基、芳酰氧基、甲酰基、酰基、氰基、氨基、羧基或三氟甲基,R.sub.6和R.sub.7独立表示氢、氨基、较低的烷基、羟基、硝基或氰基或R.sub.2和R.sub.7一起形成--CH.sub.2--NH--或--CH.dbd.N--基团,A表示苯基、萘基或含氮杂环。这些化合物可用于治疗充血性心力衰竭。