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Three New Kaempferol Glycosides from Cardamine leucantha

✍ Scribed by Fan Yang; Yan-Fang Su; Yan-Ping Bi; Jing Xu; Zhi-Qiang Zhu; Guang-Zhong Tu; Xiu-Mei Gao

Book ID
102254595
Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
149 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Three new kaempferol glycosides, kaempferol 3‐O‐β‐D‐glucopyranosyl‐(1→6)‐β‐D‐galactopyranosyl‐7‐O‐α‐L‐rhamnopyranoside (1), kaempferol 3‐O‐β‐D‐galactopyranosyl‐7‐O‐β‐D‐glucopyranosyl‐(1→3)‐α‐L‐rhamnopyranoside (2), and kaempferol 3‐O‐β‐D‐glucopyranosyl‐(1→6)‐β‐D‐galactopyranosyl‐7‐O‐β‐D‐glucopyranosyl‐(1→3)‐α‐L‐rhamnopyranoside (3), were isolated from the whole herbs of Cardamine leucantha, along with three known kaempferol glycosides, kaempferol 7‐O‐α‐L‐rhamnopyranoside, kaempferitrin, and kaempferol 3‐O‐β‐D‐galactopyranosyl‐7‐O‐α‐L‐rhamnopyranoside. Their structures were elucidated on the basis of spectroscopic methods.

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## Abstract Two new kaempferol glycosides, 5‐hydroxy‐2‐(4‐hydroxyphenyl)‐4‐oxo‐7‐(__α__‐L‐rhamnopyranosyloxy)‐4__H__‐chromen‐3‐yl 2‐__O__‐acetyl‐3‐__O__‐__β__‐D‐glucopyranosyl‐__α__‐L‐rhamnopyranoside (**1**) and 5‐hydroxy‐2‐(4‐hydroxyphenyl)‐4‐oxo‐7‐(__α__‐L‐rhamnopyranosyloxy)‐4__H__‐chromen‐3‐yl