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