1beta,8-diangeloyloxy-2beta-acetoxy-4alpha-chloro-3beta-hydroxy-10, 11-o,o-isopropylidenebis-aboia-7(14)-ene
1beta,8-diangeloyloxy-2beta-acetoxy-4alpha-chloro-3beta-hydroxy-10, 11-o,o-isopropylidenebis-aboia-7(14)-ene