title: Oligomeric hydrolysable tannins from Tibouchina multiflora.
abstract: Two hydrolysable tannins, nobotanin O and nobotanin P, were isolated from the leaf extract of Tibouchina multiflora (Melastomataceae) and their dimeric and tetrameric structures elucidated on the basis of spectral data and chemical correlations with nobotanin B and K, respectively. Thirteen known hydrolysable tannins including nobotanins A, B, C and J, which are oligomers characteristic of the Melastomataceae, were also isolated.
authors.affiliation: Faculty of Pharmaceutical Sciences, Okayama University, Japan. yoshida@pheasant.pharm.okayama-u.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Yoshida
authors.forename: Y
authors.initials: Y
authors.lastname: Amakura
authors.forename: N
authors.initials: N
authors.lastname: Yokura
authors.forename: H
authors.initials: H
authors.lastname: Ito
authors.forename: J H
authors.initials: JH
authors.lastname: Isaza
authors.forename: S
authors.initials: S
authors.lastname: Ramirez
authors.forename: D P
authors.initials: DP
authors.lastname: Pelaez
authors.forename: S S
authors.initials: SS
authors.lastname: Renner
mesh_terms: D002240:Carbohydrate Sequence; D019281:Dimerization; D008958:Models, Molecular; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009844:Oligosaccharides / Q000737:chemistry; D010936:Plant Extracts / Q000032:analysis*; D018515:Plant Leaves / Q000737:chemistry*; D013634:Tannins / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D009844:Oligosaccharides; D010936:Plant Extracts; D013634:Tannins