title: Investigations on the synthesis and properties of some N-arylpiperazinylalkyl derivatives of 1,4-dioxo (1,4,5-trioxo)-1,2,3,4-tetra (and 1,2,3,4,5,6-hexa)hydropyrido[3,4-d]pyridazines.
abstract: 2-(1-Piperidino)- and 2-(4-methyl-1-piperazinyl)-6-methyl-3, 4-pyridinedicarboximides (1,2) react with CH3NH-NH2 yielding 3-methyl derivatives of the corresponding 1,4-dioxo-1,2,3,4-tetrahydropyrido[3,4-d] pyridazines (4,5). The same reaction with 1,6-dimethyl-2-oxo-1,2-dihydro-3,4- pyridinedicarboximide (3) affords 2-methyl derivative of the corresponding 1,4,5-trioxo-1,2,3,4,5,6- hexahydropyrido[3,4-d]pyridazine (8. Compounds 4,5 and 8 were transformed into their N-arylpiperazinylalkyl derivatives (13-18) on two ways. Some of them were active pharmacologically.
authors.affiliation: Department of Chemistry of Drugs, Wroclaw University of Medicine, Poland.
authors.forename: H
authors.initials: H
authors.lastname: Sladowska
authors.forename: J
authors.initials: J
authors.lastname: Potoczek
authors.forename: M
authors.initials: M
authors.lastname: Sieklucka-Dziuba
authors.forename: G
authors.initials: G
authors.lastname: Rajtar
authors.forename: M
authors.initials: M
authors.lastname: Møynarczyk
authors.forename: Z
authors.initials: Z
authors.lastname: Kleinrok
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis* / Q000494:pharmacology; D000818:Animals; D005260:Female; D007928:Lethal Dose 50; D008297:Male; D051379:Mice; D009043:Motor Activity / Q000187:drug effects; D011724:Pyridazines / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D051381:Rats; D017208:Rats, Wistar; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; D011724:Pyridazines