Ethyl 2-chloro-5-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 5-chloro-2-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 4-chloro-6-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
4-(Chloromethyl)-3-cyano-2-nitro-5-(trifluoromethoxy)pyridine