Three New Kaempferol Glycosides from Cardamine leucantha |
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| Authors: | Fan Yang Yan‐Fang Su Yan‐Ping Bi Jing Xu Zhi‐Qiang Zhu Guang‐Zhong Tu Xiu‐Mei Gao |
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| Institution: | 1. School of Pharmaceutical Science and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin 300072, P.?R. China, (phone: +86‐22‐27402885;2. fax: +86‐22‐27892025);3. Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.?R. China;4. Beijing Institute of Microchemistry, Beijing 100091, P.?R. China |
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| 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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| Keywords: | Cardamine leucantha Flavonoids Kaempferol glycosides Glycosides |
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