4-Cyano-2-methyl-3-(trifluoromethoxy)pyridine-5-acetic acid
4-Chloro-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-Chloro-5-(difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
3-Cyano-5-(difluoromethyl)-4-methyl-2-(trifluoromethoxy)pyridine