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J Nat Prod. 1994 Feb;57(2):218-24.

Structure elucidation of three triterpenoid saponins from Alphitonia zizyphoides using 2D NMR techniques.

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1
Department of Chemistry, Brigham Young University, Provo, Utah 84602.

Abstract

High-field nmr experiments have been used to determine the structures of three new saponins, zizyphoisides C, D, and E [1-3], isolated from Alphitonia zizyphoides, a medicinal plant found in the Samoan rain forest. The saponins consist of the aglycone, jujubogenin, to which are attached three sugar units and an unsaturated side-chain. The three compounds are similar except for the location of an acetyl group on one of the sugar units.

PMID:
8176398
[Indexed for MEDLINE]
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