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