Cycloartane triterpenoids of propolis from Teresina - PI

摘要

The chemical study of the propolis produced in Teresina city, state of Piaui, resulted in the identification of six cycloartane triterpenoids: isomangiferolic acid, 24-methylenecycloartane-3b,26-diol, mangiferolic acid, mangiferonic acid, ambonic acid and ambolic acid. The substances were characterized by one and two-dimensional 1H and 13C NMR analysis.