2-Amino-4-nitro-3-(trifluoromethoxy)pyridine-6-acetic acid
3-Bromo-4-cyano-5-(trifluoromethoxy)pyridine-2-carboxylic acid
Methyl 5-amino-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
6-Bromo-2-cyano-3-(trifluoromethoxy)pyridine-4-carboxylic acid