2-Nitro-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-sulfonamide
6-Nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-sulfonamide
3-(Bromomethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-methanol
2-(Bromomethyl)-6-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-methanol