title: Novel 4-substituted-2(1H)-phthalazinone derivatives: synthesis, molecular modeling study and their effects on α-receptors.
abstract: Novel 4-(4-bromophenyl)phthalazine derivatives connected via an alkyl spacer to amine or N-substituted piperazine were designed and synthesized as promising α-adrenoceptor antagonists. The structures of the phthalazine derivatives were established using elemental and spectral analyses. Twelve of the tested compounds displayed significant α-blocking activity. Molecular modeling studies were performed to rationalize the biological results. Among the tested compounds, 7j displayed the best-fitting score and the highest in vitro activity.
authors.affiliation: Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
authors.forename: Nadia A
authors.initials: NA
authors.lastname: Khalil
authors.forename: Eman M
authors.initials: EM
authors.lastname: Ahmed
authors.forename: Hosam A
authors.initials: HA
authors.lastname: Elshihawy
authors.forename: Sawsan A
authors.initials: SA
authors.lastname: Zaitone
mesh_terms: D000317:Adrenergic alpha-Antagonists / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D000818:Animals; D006801:Humans; D008958:Models, Molecular; D010793:Phthalazines / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D011817:Rabbits; D013329:Structure-Activity Relationship
chemical_list: D000317:Adrenergic alpha-Antagonists; D010793:Phthalazines