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