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