(1S-(1alpha,6alpha,8beta,8abeta))-Octahydro-1,6,8-indolizinetriol 1,6,8-Indolizinetriol, octahydro-, (1S-(1alpha,6alpha,8beta,8abeta))- 129724-72-7 7-Deoxy-6-epi-castanospermine 7-Deoxycastanospermine