4-Bromo-2-cyano-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
6-Amino-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid
5-Bromo-3-cyano-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Bromo-5-cyano-2-(trifluoromethoxy)pyridine-4-carboxaldehyde