Methyl 2-chloro-3-nitro-4-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-bromo-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
5-Chloro-2-cyano-4-nitro-3-(trifluoromethoxy)pyridine
Methyl 4-bromo-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylate