Journal of Natural Products
Soularubinone, a new antileukemic quassionoid from Soulamea tomentosa.
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The structure of soularubinone 3, a new antileukemic quassinoid isolated from the leaves of Soulamea tomentosa (Brongn, and Gris), has been established by spectral and chemical methods. It has been shown to be the C-15 beta-hydroxy-isovaleric ester of glaucarubolone. Soularubinone shows significant antineoplastic activity against mouse leukemia P-388 and inhibits cell transformation induced by Rous sarcoma virus. The known quassinoid chaparrinone I has also been isolated.