Ethyl 4-(difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-5-acetate
2-(Chloromethyl)-6-methyl-4-nitro-3-(trifluoromethoxy)pyridine
Ethyl 2-(difluoromethyl)-6-methoxy-3-(trifluoromethoxy)pyridine-5-acetate
2-(Difluoromethyl)-4-nitro-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride