Abstract
The utility of ethyl 6-methyl-2-oxo-4-phenyl-1,2-dihydropyrimidine5-carboxylate (1) in the synthesis of some new pyrido[1,2-f]pyrimidine, pyrazolo[3,4-b]pyrido[l,2-f]pyrimidine, 6-(4-substituted styryl)pyrimidine, pyrido[4,3-d]pyrimidine, pyrimido[5,4-d]pyridazine and substituted-6-(thien-2-yl)pyrimidine derivatives is reported. Antimicrobial evaluation of some selected examples from the synthesized products was carried out.