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