摘要 : Preparative HPLC of an ethanol extract of seeds of Khaya senegalensis yielded three new tetranortriterpenoids of the mexicanolide type. These compounds were identified as 2-hydroxymexicanolide, 6-deoxydestigloylswietenine and 2,3-... 展开 Preparative HPLC of an ethanol extract of seeds of Khaya senegalensis yielded three new tetranortriterpenoids of the mexicanolide type. These compounds were identified as 2-hydroxymexicanolide, 6-deoxydestigloylswietenine and 2,3-dihydroxy-3-deoxymexicanolide. In addition, mexicanolide, 3 beta-hydroxy-3-deoxymexicanolide, 3 beta-hydroxy-3-deoxycarapin, 6-hydroxy methyl angolensate, 3-acetyl-7-keto khivorin, 3-deacetyl khivorin and 3,7-dideacetyl khivorin were also isolated. 收起