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