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Original Articles

Triterpenoids from Viburnum betulifolium

, &
Pages 105-110 | Received 31 Oct 2010, Accepted 01 Dec 2010, Published online: 28 Jan 2011
 

Abstract

Two new triterpenoids, ursa-12-sene-3β,11β-diol 3-O-palmitate (1) and ursa-12-sene-1β,3β,11α-triol 3-O-palmitate (2), were isolated from the 70% aqueous acetone extract of the aerial parts of Viburnum betulifolium, together with the artificial diene derivative of 2, ursa-12-dien-1β,3β-diol 3-O-palmitate (2a). Their structures were characterized by various spectroscopic methods, including 1D NMR, 2D NMR, and HR-ESI-MS.

Acknowledgements

The authors thank Prof. Xiao Cheng of Kunming Institution of Botany, Kunming, China for collecting and identifying V. betulifolium.

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