Ethyl 2-cyano-3-iodo-6-(trifluoromethoxy)pyridine-5-acetate
5-Chloro-2-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylic acid
Ethyl 2-cyano-3-iodo-5-(trifluoromethoxy)pyridine-4-acetate
4-Chloro-3-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid