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