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