2-Methoxy-4-nitro-5-(trifluoromethoxy)pyridine-3-sulfonamide
2-Methoxy-3-nitro-6-(trifluoromethoxy)pyridine-5-sulfonamide
4-(Chloromethyl)-2-(difluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridine
6-(Chloromethyl)-2-iodo-3-(trifluoromethoxy)pyridine-4-carboxaldehyde