A new flavonol glycoside, quercetin-3-O-(4″-galloyl)-α-L-rhamnopyranoside (1), along with two known ones, kaempferol-3-O-β-D-glucopyranoside (2) and quercetin-3-O-rutinoside (3), were isolated from the root barks of Sophora japonica. The chemical structures of the isolated compounds were elucidated by spectroscopic analysis, including extensive 1D and 2D NMR and MS techniques.
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Acknowledgment
This project was financially supported by the State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University) (K2013101), Foundation (No. 201531) of Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology, Natural Science Foundation of Tianjin City (13JCZDJC29400), and National Natural Science Foundation of China (31170541).
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Published in Khimiya Prirodnykh Soedinenii, No. 5, September–October, 2016, pp. 683–685.
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Si, CL., Du, ZG., Fan, S. et al. Isolation and Structure Elucidation of a New Flavonol Glycoside from Sophora japonica . Chem Nat Compd 52, 794–797 (2016). https://doi.org/10.1007/s10600-016-1780-7
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DOI: https://doi.org/10.1007/s10600-016-1780-7