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