56406-44-1

ethyl 4-hydroxy-2-pyridin-4-ylpyrimidine-5-carboxylate Ethyl 4-oxo-2-(pyridin-4-yl)-1,4-dihydropyrimidine-5-carboxylate 5-Pyrimidinecarboxylic acid, 1,6-dihydro-6-oxo-2-(4-pyridinyl)-, ethyl ester