120267-14-3
7-methyl-4-oxo-2-thioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-5-carboxylic acid ethyl ester
→
114402-40-3
7-methyl-4-oxo-2-thioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-5-carboxylic acid