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