4-Chloro-5-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Chloro-5-fluoro-2-(trifluoromethoxy)pyridine-6-acetic acid
2-Cyano-5-(difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine
6-Cyano-4-(difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine