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