3-(Chloromethyl)-6-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-sulfonamide
3-(Bromomethyl)-2-(difluoromethyl)-4-methyl-6-(trifluoromethyl)pyridine
6-(Bromomethyl)-2-(difluoromethyl)-3-methyl-4-(trifluoromethyl)pyridine
5-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-sulfonamide