Flavonoid Glycosides from Ranunculus chinensis Bge. |
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| Authors: | Yan‐Ping Zou Chang‐Heng Tan Bao‐De Wang Shan‐Hao Jiang Da‐Yuan Zhu |
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| Institution: | 1. State Key Laboratory of Drug Research, Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 ZuChongZhi Road, Shanghai 201203, P.?R. China, (phone: +86‐21‐50806728;2. fax: +86‐21‐50807088) |
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| Abstract: | Four new flavonoid glycosides, 3‐O‐α‐L ‐arabinopyranosyl‐(1→2)‐β‐D ‐galactopyranosyl]‐7‐O‐β‐D ‐glucopyranosylkaempferol ( 1 ), 3‐O‐(α‐L ‐arabinopyranosyl‐(1→2)‐{4‐O‐(E)‐caffeoyl]‐β‐D ‐galactopyranosyl})‐7‐O‐β‐D ‐glucopyranosylquercetin ( 2 ), 3‐O‐{2‐O‐(E)‐caffeoyl]‐α‐L ‐arabinopyranosyl‐(1→2)‐β‐D ‐galactopyranosyl}‐7‐O‐β‐D ‐glucopyranosylkaemperfol ( 3 ), and 3‐O‐{2‐O‐(E)‐caffeoyl]‐α‐L ‐arabinopyranosyl‐(1→2)‐β‐D ‐galactopyranosyl}kaempferol ( 4 ), together with two known compounds were isolated from the aerial parts of Ranunculus chinensis Bge . The structures of the new glycosides were determined on the basis of spectroscopic analysis, including 1D‐ and 2D‐NMR, and ESI‐MS techniques, and chemical methods. |
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| Keywords: | Ranunculus chinensis Bge Flavonoids Glycosides |
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