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