Methyl 3-chloro-2-(difluoromethyl)-5-nitropyridine-4-carboxylate
4-Chloro-3-cyano-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Ethyl 2-bromo-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate
4-(Difluoromethyl)-3-methyl-6-nitro-2-(trifluoromethyl)pyridine