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
Synthesis of Some Novel <i>N</i>-Substituted Phthalazinone and Pyridopyridazinone Derivatives
作者:Zbigniew Malinowski、Dariusz Sroczyński、Aleksandra K. Szcześniak
DOI:10.1080/00397911.2015.1025282
日期:2015.8.3
Abstract Phthalazinone and pyridopyridazinone derivatives 3, 5, and 9 were prepared via reaction ofappropriate lactams 2 and 8 with 2-bromoethylphthalimide, N-tosylaziridine, and N,O-ditosyl derivatives of N-methylethanolamine in a two-step process in the presence of MeONa/MeOH or NaH/dimethylformamide (DMF). Starting compounds 2 and 8 were obtained by reaction of hydrazine hydrate with isoindolinones
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).