3-Bromo-5-chloro-2-(trifluoromethoxy)pyridine-6-carboxylic acid
4-Amino-5-nitro-2-(trifluoromethoxy)pyridine-3-acetic acid
4-Amino-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Amino-6-nitro-2-(trifluoromethoxy)pyridine-3-acetic acid