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