5-Pyrimidinecarboxylic acid, 2-amino-1,4-dihydro-4-oxo-, ethyl ester
5-Pyrimidinecarboxylic acid, 2-amino-4-hydroxy-, ethyl ester
Ethyl 2-amino-1,4-dihydro-4-oxo-5-pyrimidinecarboxylate
2-Amino-4-hydroxy-5-pyrimidine carbonic acid ethyl ester
2-Amino-4-hydroxypyrimidine-5-carboxylic acid ethyl ester
Ethyl 2-amino-6-oxo-1,6-dihydropyrimidine-5-carboxylate