A Facile Synthesis of New 3-Substituted-2,3- dihydropyrido[3,2-<i>d</i>]pyrimidine-2,4-diones
作者:R. Mamouni、M. Akssira、M. Aadil、A. Elhakmaoui、J. Lasri、E. Zaballos-Garcia
DOI:10.1081/scc-120026855
日期:2003.12.31
Pyrido[3,2-d]pyrimidine-2,4-diones derivatives have been synthesized in good yields by two efficient synthetic routes, the first one through an hetero-cyclization on the ureas derivatives 3a-e under alkaline conditions, the second one by condensation of the isocyanate 2 with various arylalkylamines in pyridine.