6-(Bromomethyl)-2-(difluoromethyl)-4-methylpyridine-3-acetic acid
2-(Bromomethyl)-6-(difluoromethyl)-4-methylpyridine-3-acetic acid
2-(Bromomethyl)-6-(difluoromethyl)-3-methylpyridine-5-acetic acid
2-(Bromomethyl)-6-(difluoromethyl)-3-methylpyridine-4-acetic acid