3-(Difluoromethyl)-5-iodo-2-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Iodo-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-acetic acid
3-(Difluoromethyl)-4-iodo-6-(trifluoromethoxy)pyridine-2-carboxylic acid
6-Iodo-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-acetic acid