Diastereoisomeric saponins from the rhizomes of Tupistra chinensis

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A pair of diastereoisomeric furostanol saponins was obtained from the n-butanol fraction of methanol extract from Tupistra chinensis rhizomes, a folk medicine of Shennongjia Forest District of Hubei Province. Their structures were determined, on the basis of chemical and spectroscopic evidences.
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