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