SIRCAR, I.;BOBOWSKI, G.;BRISTOL, J. A.;WEISHAAR, R. E.;EVANS, D. B., J. MED. CHEM., 1986, 29, N 2, 261-267
作者:SIRCAR, I.、BOBOWSKI, G.、BRISTOL, J. A.、WEISHAAR, R. E.、EVANS, D. B.
DOI:——
日期:——
Cardiotonic agents. 3. Synthesis and biological activity of novel 6-(substituted 1H-imidazol-4(5)-yl)-3(2H)-pyridazinones
作者:Ila Sircar、George Bobowski、James A. Bristol、Ronald E. Weishaar、Dale B. Evans
DOI:10.1021/jm00152a015
日期:1986.2
Several 6-(substituted 1H-imidazol-4(5)-yl)-3(2H)-pyridazinones were synthesized and evaluated for positive inotropic activity. The 1H-imidazol-4-yl regioisomers 4,5-dihydro-6-(1-methyl-2-phenyl-1H-imidazol-4-yl)-3(2H)-pyridazinone (25a) and 6-(1-methyl-2-phenyl-1H-imidazol-4-yl)-3(2H)-pyridazinone (28a) were potent positive inotropic agents. By contrast, the corresponding 1H-imidazol-5-yl regioisomers