An Additional Sweet Dihydroflavonol Glycoside from Leaves of Engelhardtia chrysolepis, a Chinese Folk Medicine, Huang-qi

Ryoji KASAI; Satomi HIRONO; Wen-Hua CHOU; Osamu TANAKA; Feng-Huai CHEN

doi:10.1248/cpb.39.1871

Ryoji KASAI, Satomi HIRONO, Wen-Hua CHOU, Osamu TANAKA, Feng-Huai CHEN

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Keywords: Engelhardtia crysolepis, Juglandaceae, Chinese folk medicine, dihydroflavonol glycoside, sweet glycoside, taxifolin glycoside, huangquioside E, neohuangqioside E, Huang-qi

JOURNAL FREE ACCESS

1991 Volume 39 Issue 7 Pages 1871-1872

DOI https://doi.org/10.1248/cpb.39.1871

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Abstract

From leaves of Engelhardtia crysolepis HANCE (Juglandaceae), which have been used as a sweet tea in China, we have isolated a sweet dihydroflavonol glycoside, and the structure was elucidated on the basis of chemical and spectral evidence as 3-O-β-D-glucopyranosyl(1→3)-α-L-rhamnopyranosyl-(2R, 3R)-taxifolin.

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