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Five new bidesmoside triterpenoid saponins from Stauntonia chinensis
Author(s) -
Hao Gao,
Zhao Wang,
Lei Yang,
Yang Yu,
ZhiHong Yao,
NaiLi Wang,
GuangXiong Zhou,
WenCai Ye,
XinSheng Yao
Publication year - 2008
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.2222
Subject(s) - chemistry , dept , stereochemistry , triterpenoid , two dimensional nuclear magnetic resonance spectroscopy , triterpenoid saponin , saponin , heteronuclear single quantum coherence spectroscopy , medicine , alternative medicine , pathology
Eleven triterpenoid saponins (1–11) were isolated from Stauntonia chinensis DC. (Lardizabalaceae), including five new compounds, yemuoside YM 21–25 (1–3, 6, 7) structures of which were elucidated by chemical methods and a combination of MS, 1D‐ and 2D‐ NMR experiments including DEPT, 1 H 1 H COSY, HSQC, HMBC, TOCSY, and NOESY as 3‐ O ‐α‐ L ‐arabinopyranosyl‐(1 → 3)‐[α‐ L ‐rhamnopyranosyl‐(1 → 2)‐]α‐ L ‐arabinopyranosyl‐akebonicacid‐28‐ O ‐α‐ L ‐rhamnopyranosyl‐(1 → 4)‐β‐ D ‐glucopyranosyl‐(1 → 6)‐β‐ D ‐glucopyranosyl ester (1), 3‐ O ‐β‐ D ‐xylopyranosyl‐(1 → 3)‐α‐ L ‐rhamnopyranosyl‐(1 → 2)‐α‐ L ‐arabinopyranosyl‐akebonic acid‐28‐ O ‐α‐ L ‐rhamnopyranosyl‐(1 → 4)‐β‐ D ‐glucopyranosyl‐(1 → 6)‐β‐ D ‐glucopyranosyl ester (2), 3‐ O ‐β‐ D ‐glucopyranosyl‐(1 → 3)‐α‐ L ‐arabinopyranosyl‐akebonic acid‐28‐ O ‐α‐ L ‐rhamnopyranosyl‐(1 → 4)‐β‐ D ‐glucopyranosyl‐(1 → 6)‐β‐ D ‐glucopyranosyl ester (3), 3‐ O ‐α‐ L ‐arabinopyranosyl‐(1 → 3)‐[α‐ L ‐rhamnopyranosyl‐(1 → 2)‐]α‐ L ‐arabinopyranosyl‐akebonic acid‐28‐ O ‐β‐ D ‐glucopyranosyl‐(1 → 6)‐β‐ D ‐glucopyranosyl ester (6), 3‐ O ‐α‐ L ‐arabinopyranosyl‐(1 → 3)‐[α‐ L ‐arabinopyranosyl‐(1 → 2)‐]α‐ L ‐arabinopyranosyl‐akebonic acid‐28‐ O ‐β‐ D ‐glucopyranosyl‐(1 → 6)‐β‐ D ‐glucopyranosyl ester (7). Copyright © 2008 John Wiley & Sons, Ltd.