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