title: Synthesis and conformation analysis of 3-substituted derivatives of 1H,3H-pyrido[2,3-d] pyrimidin-4-one of expected depressive nervous system. Part III.
abstract: Four series of new 1-aryl (heteroaryl) piperazinylacetyl derivatives of 1H,3H-pyrido[2,3-d] pyrimidin-4-one VIIa-o were synthesised. Substrates for the synthesis of VIa-d were obtained from the respective 3H-pyrido[2.3-d]pyrimidines IVa-d in the reaction with NaBH4. Compounds VIa-d were prepared by chloroacetylation. The obtained 1-chloroacetyl derivatives in the reaction with respective aryl (heteroaryl) piperazine formed 1-aminoacetyl derivatives of 2-phenyl-1 H.3H-pyrido[2.3-d]pyrimidin-4-one compounds VII1a-n. The structure ol compounds was analysed by 1H, 13C NMR spectroscopy.
authors.affiliation: Department of Drug Technology, Faculty of Pharmacy The Medical University of Warsaw, I Banacha Str., 02-097 Warsaw, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Chodkowski
authors.forename: Franciszek
authors.initials: F
authors.lastname: Herold
authors.forename: Jerzy
authors.initials: J
authors.lastname: Kleps
mesh_terms: D002492:Central Nervous System Depressants / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002855:Chromatography, Thin Layer; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D011744:Pyrimidinones / Q000138:chemical synthesis* / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: C489330:1H,3H-pyrido(2,3-d) pyrimidin-4-one; D002492:Central Nervous System Depressants; D007202:Indicators and Reagents; D011744:Pyrimidinones