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