Antiarol Cinnamate and Africanoside, a Cinnamoyl Triterpene and a Hydroperoxy-cardenolide from the Stem Bark of Antiaris africana

摘要

From the methanol extract of the stem bark of the African tree Antiaris africana Engler, two new bioactive metabolites were isolated, namely, the alpha-amyrin derivative 1beta,11alpha-dihydroxy-3beta-cinnamoyl-alpha-amyrin (antiarol cinnamate, 1) and a cardiac glycoside, 3beta-0-(