2-Amino-5-fluoro-3-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Amino-5-(chloromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
2-Amino-3-fluoro-4-(trifluoromethoxy)pyridine-5-carboxylic acid
2-Amino-6-(chloromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine