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