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