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