Ethyl 3-cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2-(difluoromethyl)-3-nitro-5-(trifluoromethyl)pyridine-4-carboxylate
Ethyl 3-(chloromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine-6-acetate
2-Methyl-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride