5-amino-4-chloro-6-oxo-1,6-dihydropyrimidine
4-chloro-N-(4-chloro-6-methoxy-5-pyrimidinyl)-3-nitrobenzamide
4-chloro-N-(4-chloro-6-methoxy-5-pyrimidinyl)-3-cyanobenzamide
N-(3'-chloro-2',6'-dinitro-4'-trifluoromethylphenyl)-5-amino-4-chloro-6-methoxypyrimidine
4-methoxycarbonyl-5-chloro-1,2,3-triazole