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