4-Hydroxy-6-iodo-2-(trifluoromethoxy)pyridine-3-acetic acid
3-Cyano-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid
3-(Aminomethyl)-6-cyano-2-(trifluoromethoxy)pyridine-5-acetic acid
Methyl 2-(difluoromethyl)-3-fluoro-4-(trifluoromethoxy)pyridine-5-acetate