Methyl 2-(chloromethyl)-3-cyano-5-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2-cyano-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
3-(Chloromethyl)-2-cyano-6-(trifluoromethoxy)pyridine-4-acetic acid
Methyl 2-cyano-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate