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