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