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