title: 5-O-glucosyldihydroflavones from the leaves of Helicia cochinchinensis.
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.
authors.affiliation: Department of Pharmacognosy, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Morimura
authors.forename: Asuka
authors.initials: A
authors.lastname: Gatayama
authors.forename: Reiki
authors.initials: R
authors.lastname: Tsukimata
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Matsunami
authors.forename: Hideaki
authors.initials: H
authors.lastname: Otsuka
authors.forename: Eiji
authors.initials: E
authors.lastname: Hirata
authors.forename: Takakazu
authors.initials: T
authors.lastname: Shinzato
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Aramoto
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Takeda
mesh_terms: D005233:Fatty Alcohols / Q000737:chemistry / Q000302:isolation & purification; D047309:Flavones / Q000737:chemistry* / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D039105:Proteaceae / Q000737:chemistry*; D013729:Terpenes
chemical_list: D005233:Fatty Alcohols; D047309:Flavones; D005419:Flavonoids; D005960:Glucosides; D010936:Plant Extracts; D013729:Terpenes; C084877:icariside C(1); C080220:aromadedrin