methyl 2-Methanesulfonyl-pyrimidine-4-carboxyliate

Ethyl (2-amino-4-hydroxy-6-methyl-5-pyrimidinyl)acetate

2-Methanesulfonyl-pyrimidine-4-carboxylic acid methyl ester

(2-Amino-4-hydroxy-6-methyl-pyrimidin-5-yl)-acetic acid ethyl ester