Methyl 6-(2-methoxy-2-oxoethyl)-4-(4-methoxyphenyl )-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylateMethyl 6-(2-methoxy-2-oxoethyl)-4-(4-methoxyphenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylatemethyl 6-(2-methoxy-2-oxoethyl)-4-(4-methoxyphenyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate