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