NMR Structure Elucidation of Triterpene Saponin Isolated from Dipsacus asperoides C. Y. Cheng et T. M. Ai

Abstract

Abstract:

Two triterpene saponins were isolated from the roots of Dipsacus asperoides C. Y. Cheng et T. M. Ai. The structure of compound 1 was determined by chemical and physical methods, including spectral analysis techniques such as ESI-MS, ¹H NMR, ¹³C NMR, ¹H-¹H COSY, HMQC and HMBC. The compound was found to be oleanolic acid-3-O-α-L-arabinopyra-28-O-β-D-glucopyranoside-(1→6)-β-D-glucopyranoside ester. Moreover, the ¹H NMR chemical shifts of the compound were assigned.

Key words: NMR, structure, 2D NMR, oleanane triterpenoids

CLC Number:

WU Shuai, LIU Er-Wei, LIU Hong, WANG Meng, HAO Yu, ZHU Xiao-Yue. NMR Structure Elucidation of Triterpene Saponin Isolated from Dipsacus asperoides C. Y. Cheng et T. M. Ai[J]. Chinese Journal of Magnetic Resonance, 2010, 27(4): 661-668.

References

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NMR Structure Elucidation of Triterpene Saponin Isolated from Dipsacus asperoides C. Y. Cheng et T. M. Ai

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