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