3 结果
Ailanthione (1), glaucarubinone (2) and a mixture of glaucarubol 15-isovalerate (3) and 13,18-dehydroglaucarubol 15-isovalerate (4) were found to be the compounds responsible for the antitumor and cytotoxic activities of extracts of the root bark of Ailanthus excelsa (Simaroubaceae). The latter
Three quassinoids, 1, 2 and 3, 4-dihydro excelsin 3 were isolated from the stem bark of Ailanthus excelsa, along with five known quassinoids excelsin, glaucarubine, ailanthinone, glaucarubinone and glaucarubolone. The glaucarubolone has been isolated for the first time from this plant. The
Quassinoids are bitter constituents characteristic of the family Simaroubaceae. A total of 18 C20 quassinoids, including nine new quassinoid glycosides, named chuglycosides A-I (1-6 and 8-10), were identified from the samara of Ailanthus altissima (Mill.) Swingle. All of the quassinoids showed