title: Amphipaniculosides A-D, triterpenoid glycosides, and amphipaniculoside E, an aliphatic alcohol glycoside from the leaves of Amphilophium paniculatum.
abstract: Four new triterpenoids; One oleanane-, one ursane- and two cycloartane-type triterpenoids, named amphipaniculosides A-D, in addition to one new aliphatic alcohol glycoside, named amphipaniculoside E, were isolated from the 1-BuOH fraction of the leaves of Amphilophium paniculatum (L.) Kunth., together with five known compounds, (+)-lyoniresinol 3α-O-β-D-glucopyranoside, (-)-lyoniresinol 3α-O-β-D-glucopyranoside, acteoside (verbascoside), isoacteoside (isoverbascoside), and luteolin 7-O-β-D-glucopyranoside. Their structures were elucidated by spectroscopic methods including 1D and 2D NMR experiments ((1)H, (13)C, DEPT, COSY, ROESY, HSQC, HMBC) in combination with HR-ESI-MS and by comparisons of their physical and spectroscopic data with literature values.
authors: Department of Pharmacognosy, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan; Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
authors: Mamdouh Nabil
authors: MN
authors: Samy
authors: Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
authors: Hany Ezzat
authors: HE
authors: Khalil
authors: Department of Pharmacognosy, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
authors: Sachiko
authors: S
authors: Sugimoto
authors: Department of Pharmacognosy, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan. Electronic address: matunami@hiroshima-u.ac.jp.
authors: Katsuyoshi
authors: K
authors: Matsunami
authors: Department of Pharmacognosy, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan; Department of Natural Products Chemistry, Faculty of Pharmacy, Yasuda Women's University, 6-13-1 Yasuhigashi, Asaminami-ku, Hiroshima 731-0153, Japan. Electronic address: otsuka@yasuda-u.ac.jp.
authors: Hideaki
authors: H
authors: Otsuka
authors: Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
authors: Mohamed Salah
authors: MS
authors: Kamel
mesh_terms: D029402:Bignoniaceae / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D059808:Polyphenols
chemical_list: D005960:Glucosides; D006027:Glycosides; D010636:Phenols; D014315:Triterpenes; C000606012:amphipaniculoside A; C058956:acteoside; D059808:Polyphenols; C085352:cycloartane; C064683:isoacteoside
keywords: Aliphatic alcohol glycoside; Amphilophium paniculatum; Amphipaniculosides; Bignoniaceae; Triterpenoids