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Terpenoids from Guarea guidonia

Terpenoids from Guarea guidonia

  1. helikophis
    The volatile oil and the methanol extract from the leaves of Guarea guidonia, Meliaceae, were individually submitted to chro-
    matographic separation. A sesquiterpene (2S*)-eudesma-5,7-dien-2-ol, together with six known ones, were isolated from the volatile
    oil. The methanolic extract afforded two known and two new triterpenes (23S*)-cycloart-24-ene-3b,23-diol and (23R*)-cycloart-24-
    ene-3b,23-diol, besides three known sesquiterpenes, one known diterpene and two steroids. Their structures were established on the
    basis of spectrocopic data, mainly by 1H and 13C NMR spectroscopic analyses.