Ethyl 2-(difluoromethyl)-6-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylate
5-Methyl-3-nitro-4-(trifluoromethoxy)pyridine-2-sulfonamide
Ethyl 2-(difluoromethyl)-5-methoxy-6-(trifluoromethoxy)pyridine-3-carboxylate
2-Methyl-5-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride