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