3-(Difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-(Difluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-(Difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Methyl 4-(bromomethyl)-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-acetate