3-Chloro-2-methoxy-5-(trifluoromethoxy)pyridine-4-carboxylic acid
6-Chloro-4-cyano-3-(trifluoromethoxy)pyridine-2-acetic acid
2-Chloro-3-cyano-5-(trifluoromethoxy)pyridine-6-acetic acid
6-Chloro-2-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylic acid