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