2-(Bromomethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylic acid
2-(Bromomethyl)-5-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
2-(Bromomethyl)-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetic acid
2-(Bromomethyl)-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-5-acetic acid