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