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