123044-09-7
2-(2-ethoxycarbonylethyl)thio-6-methyl-4-phenyl-1,4-dihydropyrimidine-5-carboxylic acid ethyl ester
→
111535-64-9
ethyl 3-acetyl-6-methyl-4-phenyl-3,4-dihydropyrimidine-2(1H)thione-5-carboxylate