2-(Chloromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-3-acetic acid
2-(Chloromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-3-acetic acid
4-(Difluoromethyl)-3-hydroxy-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
6-(Chloromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetic acid