pyrimidine,cytosine

6-(hydroxymethyl)-7h-pyrrolo[2,3-d]pyrimidine-2-carbonitrile
methyl 2-amino-4-(4-fluorophenyl)pyrimidine-5-carboxylate
1361872-88-9 (4,6-bis(2,4-dichlorophenyl)pyrimidine)
944901-34-2 (2-(chloromethyl)pyrimidine-4-carbaldehyde)
tert-butyl 7,8-dihydropyrido[4,3-d]pyrimidine-6(5h)-carboxylate