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