Structure of a New Acylated Flavonoid Glycoside, Euryanoside, from Flowers of Eurya japonica THUNB.

Akira INADA; Maki FUJIWARA; Lucy KAKIMOTO; Fusako KITAMURA; Harumasa TOYA; Mari KONISHI; Tsutomu NAKANISHI; Hiroko MURATA

doi:10.1248/cpb.37.2819

Akira INADA, Maki FUJIWARA, Lucy KAKIMOTO, Fusako KITAMURA, Harumasa TOYA, Mari KONISHI, Tsutomu NAKANISHI, Hiroko MURATA

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Keywords: Eurya japonica, Theaceae, flower, acylated flavonoid glycoside, euryanoside, halleridone, cornoside

JOURNAL FREE ACCESS

1989 Volume 37 Issue 10 Pages 2819-2821

DOI https://doi.org/10.1248/cpb.37.2819

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Abstract

A new acylated flavonoid glycoside, named euryanoside (1), has been isolated together with known compounds, halleridone (4) and cornoside (5), from male flowers of Eurya japonica THUNB. (Theaceae). The structure of 1 has been established to be apigenin 5-O-α-L-rhamnopyranosyl-(1→2)-(6"-O-acetyl)-β-D-glucopyranoside, based on lines of chemical and spectral evidence. In addition, the first identifications of 4 and 5 from the Theaceae are also reported.

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