Antiproliferative Limonoids Of A Malleastrum Sp From The Madagascar Rainforest
JOURNAL OF NATURAL PRODUCTS(2008)
Abstract
Bicassay-guided fractionation of an ethanol extract of a Malleastrum sp. afforded three new limonoids, malleastrones A-C (1-3), respectively. Each limonoid contained a rare tetranortriterpenoid skeleton. Structure elucidation of the isolates was carried out by analysis of one- and two-dimensional NMR and X-ray diffraction data. The novel isolates I and 2 were tested for antiproliferative activity against a panel of cancer cell lines and exhibited IC(50) values ranging from 0.19 to 0.63 mu M.
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Key words
limonoids,madagascar rainforest<sup></sup>
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