Methyl 4-fluoro-3-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-chloro-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 4-fluoro-3-methoxy-2-(trifluoromethoxy)pyridine-6-carboxylate
2-Cyano-6-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-acetic acid