3-(Difluoromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-5-acetic acid
4-Fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylic acid
3-(Fluoromethyl)-4-hydroxy-5-methoxy-2-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine-3-acetic acid