5-Amino-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-acetic acid
6-Amino-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-acetic acid
6-Amino-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetic acid
2-Amino-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-acetic acid