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