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