Ethyl 6-chloro-4-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
3-Chloro-6-iodo-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
Ethyl 2-chloro-4-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate
5-Chloro-2-iodo-4-(trifluoromethoxy)pyridine-3-carboxaldehyde