(2012/07/28)
methyl 4-chloro-3-(7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxamido)benzoate
7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid
ethyl 7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate
4-amino-5-cyanopyrimidine
4-aminopyrimidine-5-carboxaldehyde