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