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