(2021/06/26)
p. 1820 - 1826
(2007/10/03)5-amino-2-chloropyrimidine-4-carboxamide
ethyl 5-amino-2-chloropyrimidine-4-carboxylate
6-chloropyrimido[5,4-d]pyrimidin-4(3H)-one
ethyl 2,4-dichloro-5-nitro-6-pyrimidinecarboxylic acid
ethyl 5-nitro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylate