title: Novel norsesquiterpenoids from the roots of Phyllanthus emblica.
abstract: Three ester glycosides, named phyllaemblicins A (3), B (4), and C (5), and a methyl ester (2), of a highly oxygenated norbisabolane, phyllaemblic acid (1), were isolated from the roots of Phyllanthus emblica, along with 15 tannins and related compounds. The structures of 2-5 were established by spectral and chemical methods.
authors.affiliation: Faculty of Pharmaceutical Sciences, Nagasaki University, Bunkyo Machi 1-14, Nagasaki 852-8521, Japan.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Zhang
authors.forename: T
authors.initials: T
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Iwamoto
authors.forename: C R
authors.initials: CR
authors.lastname: Yang
authors.forename: I
authors.initials: I
authors.lastname: Kouno
mesh_terms: D002681:China; D019665:Euphorbiaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000032:analysis; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D006027:Glycosides; D010936:Plant Extracts; D013729:Terpenes; C418447:phyllaemblic acid; C418444:phyllaemblicin A; C418445:phyllaemblicin B; C418446:phyllaemblicin C