2-Amino-3-bromo-6-(trifluoromethoxy)pyridine-4-carboxylic acid
2-Amino-3-bromo-4-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Amino-6-fluoro-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine
3-Amino-5-fluoro-4-(trifluoromethoxy)pyridine-2-carboxylic acid