4-chloro-6-(chloromethyl)-2-methylpyrimidine

4-chloro-2-(chloromethyl)-6-methylpyrimidine

4-ethoxy-2,6-dimethyl-1-oxidopyrimidin-1-ium

α-(2,6-dimethyl-4-pyrimidinyl)cyanoacetate

1,3'-dioxido-6'-(p-toluenesulfonyl)-2,2',6-trimethyl-4,4'-dipyrimidinylmethane