title: Four new triterpenoids isolated from the resin of Garcinia hanburyi.
abstract: Four new triterpenoids, 2-O-acetyl-3-O-(4'-O-acetyl)-α-l-arabinopyranosylmaslinic acid (1), 2-O-acetyl-3-O-(3'-O-acetyl)-α-l-arabinopyranosylmaslinic acid (2), 2-O-acetyl-3-O-(3',4'-O-diacetyl)-α-l-arabinopyranosylmaslinic acid (3), and 3-O-(3'-O-acetyl)-α-l-arabinopyranosyloleanolic acid (4), together with six known triterpenoids, 3-O-(4'-O-acetyl)-α-l-arabinopyranosyloleanolic acid (5), maslinic acid (6), 2-O-acetylmaslinic acid (7), 3-O-acetylmaslinic acid (8), betulinic acid (9), and 2α-hydroxy-3β-O-acetylbetulinic acid (10), were isolated from the EtOAc extract of Garcinia hanburyi resin. Their structures were elucidated by analysis of the spectroscopic data and chemical methods.
authors.affiliation: a Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai , 201203 , China.
authors.forename: Hong-Min
authors.initials: HM
authors.lastname: Wang
authors.forename: Qun-Fang
authors.initials: QF
authors.lastname: Liu
authors.forename: Yi-Wu
authors.initials: YW
authors.lastname: Zhao
authors.forename: Shuang-Zhu
authors.initials: SZ
authors.lastname: Liu
authors.forename: Zhen-Hua
authors.initials: ZH
authors.lastname: Chen
authors.forename: Ru-Jun
authors.initials: RJ
authors.lastname: Zhang
authors.forename: Zhen-Zhong
authors.initials: ZZ
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Xiao
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Zhao
mesh_terms: D029760:Garcinia / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D053978:Pentacyclic Triterpenes; D012116:Resins, Plant / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014744:Vietnam; D000094062:Betulinic Acid; D009828:Oleanolic Acid / Q000031:analogs & derivatives
chemical_list: D053978:Pentacyclic Triterpenes; D012116:Resins, Plant; D014315:Triterpenes; D000094062:Betulinic Acid; C412811:maslinic acid; D009828:Oleanolic Acid