4-Nitro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-sulfonyl chloride
3-Nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-sulfonyl chloride
5-Nitro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-sulfonyl chloride
3-(Bromomethyl)-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-4-carbonyl chloride