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