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