Quassinoids and Their Chemotaxonomic Significance
نویسندگان
چکیده
The quassinoids are a group of complex, highly oxygenated, degraded triterpene mostly found in Simaroubaceae family. Two quassinoids (degraded triterpenes), 1 and 2 were isolated first time from the stem bark of Ailanthus excelsa. Compound 1 is C19 quassinoid. C19 quassinoid derived biogenetically from a C20 quassinoid, via a 1,2 – dioxo derivative. The structural elucidation is based on the analysis of spectroscopic data. Interest in these quassinoids has increased enormously in recent years due in part to the finding of the American National Cancer Institute that these compounds display marked antileukamic activity. The ways in which plants interact with other organisms in an environment are complex. Ailanthus also produces toxins in its root, bark and leaves. These toxins inhibit the growth of other plants. The isolated quassinoids are currently being studied as a possible source of a natural herbicide. Extracts of this plant have anti-insect activity and anti-tuberculosis activity. Keyword: Ailanthus excelsa, Quassinoid, Polyandrol, Glaucarubolone.
منابع مشابه
The major diterpenoids of the genus Arctopus (Apiaceae) with notes on their chemotaxonomic and medicinal significance
متن کامل
Chem. Pharm. Bull. 51(4) 385—389 (2003)
various biological activities, such as antitumor, antimalarial, antifeedant, insecticidal, antiinflammatory, amoebicidal, and herbicidal effects. We are interested in such biologically active compounds and have isolated many quassinoids from plants, such as Brucea antidysenterica, Picrasma ailanthoides, and Brucea javanica. As part of these studies, we investigated the isolation of quassinoids ...
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