Abstract
A chemical examination of the tannin ingredients in the leaves of the wood oil tree, Aleurites fordii HEMSLEY (Euphorbiaceae), has led to the isolation of three new ellagitannins named aleurinins A (4), B(5) and C(6), together with corilagin (1), geraniin (2) and chebulagic acid (3). on the basis of chemical and spectroscpic evidence, the structures of aleurinins A (4) and B (5) have been established as ellagitannins possessing a novel cyanopropylene alcohol glucoside core, while aleurinin C (6) has been characterized as an ellagitannin based on a hydroxyacetone glucoside core.
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