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