title: Synthesis of pyridopyrimidone derivatives and their activity against P. falciparum in vitro.
abstract: Pyridopyrimidone derivatives 4a-d and 5a- were synthesized as potential antimalarial agents on the basis of the pharmacological properties of existing quinolone analogues such as ciprofloxacine IC50 39.8 microM. Meanwhile among these new compounds, only the 3-amino-7-methyl-1(H)pyrazolo[3,4-b]-pyrido [1,2: 1'2']pyrimido-4-ona 4b, produces significant antimalarial activity IC50 0.42 microM against P. falciparum in vitro. The remaining compounds were effective as antimalarial agents leading from IC50 1.0 microM to IC50 4.47 microM.
authors.affiliation: Laboratorio de Síntesis Orgánica, Facultad de Farmacia, Universidad Central de Venezuela, Caracas, Venezuela.
authors.forename: J
authors.initials: J
authors.lastname: Domínguez
authors.forename: J
authors.initials: J
authors.lastname: Charris
authors.forename: L
authors.initials: L
authors.lastname: Iarrusso
authors.forename: S
authors.initials: S
authors.lastname: López
authors.forename: G
authors.initials: G
authors.lastname: Lobo
authors.forename: F
authors.initials: F
authors.lastname: Riggione
mesh_terms: D000818:Animals; D000962:Antimalarials / Q000138:chemical synthesis* / Q000494:pharmacology; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004912:Erythrocytes / Q000187:drug effects / Q000469:parasitology; D006801:Humans; D066298:In Vitro Techniques; D009682:Magnetic Resonance Spectroscopy; D010963:Plasmodium falciparum / Q000187:drug effects*; D011744:Pyrimidinones / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000962:Antimalarials; D011744:Pyrimidinones