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  • Title: 5-O-glucosyldihydroflavones from the leaves of Helicia cochinchinensis.
    Author: Morimura K, Gatayama A, Tsukimata R, Matsunami K, Otsuka H, Hirata E, Shinzato T, Aramoto M, Takeda Y.
    Journal: Phytochemistry; 2006 Dec; 67(24):2681-5. PubMed ID: 16973192.
    Abstract:
    From the leaves of Helicia cochinchinensis, collected on Okinawa Island, seven phenolic glucosides and two terpenic glucosides were isolated. Five of the phenolic glucosides were previously known, being identified with p-coumaric and ferulic acids glucosyl esters, rhodioloside, helicidiol, and naringenin 5-O-beta-D-glucopyranoside. The structures of two other phenolic glucosides, named heliciosides A and B, were elucidated to be 5-O-beta-D-glucosides of 3-hydroxyflavanone, namely aromadendrin and taxifolin, by means of spectroscopic analyses. The two terpenic glucosides were identified with ampelopsisionoside and icariside C1.
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