3-(Bromomethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid
3-(Bromomethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetic acid
5-(Difluoromethyl)-4-iodo-2-nitropyridine
3-(Bromomethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetic acid