5-(Difluoromethyl)-2-iodopyridine-4-acetic acid
2-(Chloromethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
4-(Difluoromethyl)-3-iodopyridine-5-acetic acid
3-(Bromomethyl)-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-sulfonyl chloride