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