title: Two new secoiridoid glycosides from the leaves of Olea europaea L.
abstract: Two new secoiridoid glycosides, oleuricines A (1) and B (2), together with five known triterpenoids, beta-amyrin, oleanolic acid, erythrodiol, urs-2beta,3beta-dihydroxy-12-en-28-oic acid, and beta-maslinic acid, were isolated from the EtOAc-soluble part of EtOH extract of the leaves of Olea europaea L. The structures of these compounds were elucidated by various spectroscopic methods, including intensive 1D, 2D NMR, and HR-ESI-MS techniques.
authors.affiliation: Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China.
authors.forename: Xiao-Fei
authors.initials: XF
authors.lastname: Wang
authors.forename: Chen
authors.initials: C
authors.lastname: Li
authors.forename: Yan-Ping
authors.initials: YP
authors.lastname: Shi
authors.forename: Duo-Long
authors.initials: DL
authors.lastname: Di
mesh_terms: D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D057889:Iridoid Glycosides; D039823:Iridoids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D031658:Olea / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D006027:Glycosides; D057889:Iridoid Glycosides; D039823:Iridoids; D014315:Triterpenes; C548018:oleuricine A; C548019:oleuricine B