Ethyl 6-(bromomethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate
3-Methoxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid
Ethyl 3-chloro-2-(chloromethyl)-5-(trifluoromethoxy)pyridine-6-acetate
2-(3-Bromo-4-nitropyridin-5-yl)-2-hydroxyacetic acid