Synthesis and Pharmacological Evaluation of<i>N</i>-(Dimethylamino)ethyl Derivatives of Benzo- and Pyridopyridazinones
作者:Wanda Pakulska、Zbigniew Malinowski、Aleksandra K. Szczesniak、Elzbieta Czarnecka、Jan Epsztajn
DOI:10.1002/ardp.200800016
日期:2009.1
New N‐(dimethylamino)ethyl derivatives of phthalazinones and pyridopyridazinones 7, 9 were synthesized and assayed as potential analgesic agents in the hot‐plate, tail‐flick, and writhing tests. Pharmacological assay demonstrated that eight (in ten) of the newly synthesized compounds showed antinociceptive activity. Especially, 2‐[2‐(dimethylamino)ethyl]‐4‐phenyl‐2H‐phthalazin‐1‐one 7a showed remarkably
A Practical Approach for Preparation of 2‐[(Dialkylamino)‐methyl]‐4‐aryl‐2<i>H</i>‐phthalazin‐1‐ones via Mannich Reaction of 4‐Aryl‐2<i>H</i>‐phthalazin‐1‐ones
Synthesis of 4-aryl-2H-phthalazin-1-ones 5 and their successive conversion, via the Mannich reaction into 2-[(dialkylamino)-methyl]-4-aryl-2H-phthalazin-1-ones 6, 7, 8, 9 as a way of regiospecific transformation of the 4-methoxybenzanilide 1, is described. In addition, the compounds 5b and 7 appeared to be effective complexing ligands for such metal as Cu(II), Ni(II), Fe(II), and Fe(III).