Ethyl 2-bromo-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-bromo-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
3-Chloro-5-(fluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine
6-Cyano-3-fluoro-4-(trifluoromethoxy)pyridine-2-acetic acid