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