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