1. Department of Chemistry, University of Petroleum and Minerals, Dhahran, Saudi Arabia
Abstract:
Carbon-13 NMR has been used to detect the position of angular methyl oxygenation and determine the structure of 21α,26-dihydroxy-D:A-friedooleanan-3-one, a new trioxygenated friedooleanane from Salacia reticulata var. diandra and the assignment has been confirmed chemically.