3-Methoxy-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetic acid
6-(Difluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-3-acetic acid
5-Methoxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-acetic acid
2-(Difluoromethyl)-6-methoxy-3-(trifluoromethoxy)pyridine-4-acetic acid