2-(Bromomethyl)-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-sulfonyl chloride
3-(Chloromethyl)-5-(difluoromethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-(Difluoromethyl)-5-iodopyridine-4-acetic acid
2-(Difluoromethyl)-3-iodopyridine-5-acetic acid