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