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