title: Glycosides from the methanol extract of Notopterygium incisum.
abstract: Five new (1-5) and twelve known (6-17) different types of glycosides together with a known sesquiterpene triol (18) were isolated from the methanol extract of the rhizomes of Notopterygium incisum. The new structures were elucidated by means of spectroscopic and chemical methods to be pregn-5-en-3 β,20( S)-diol-3- O-bis-β-D-glucopyranosyl-(l → 2,1 → 6)-β-D-glucopyranoside (1), oleuropeic aldehyde 8-O-β-D-glucopyranoside (2), 2( R)-(3,4-dimethoxyphenyl)-propane-1,3-diol-1-O- β-D-glucopyranoside (3), eudesman-3 α,4 α,11-triol-11-O-β-D-glucopyranoside (4), and marmesin-11-O-β-D-glucopyranosyl-(1 → 6)-β-D-glucopyranoside (5). The absolute configuration of the aglycone in compound 3 was assigned by application of Klyne's rule.
authors.affiliation: Department of Natural Products for Chemical Genetic Research, Key Laboratory of Brain Functional Genomics, Ministry of Education-MOE, East China Normal University, Shanghai, P. R. China.
authors.forename: Mei
authors.initials: M
authors.lastname: You
authors.forename: Juan
authors.initials: J
authors.lastname: Xiong
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhao
authors.forename: Lei
authors.initials: L
authors.lastname: Cao
authors.forename: Shi-Biao
authors.initials: SB
authors.lastname: Wu
authors.forename: Gang
authors.initials: G
authors.lastname: Xia
authors.forename: Jin-Feng
authors.initials: JF
authors.lastname: Hu
mesh_terms: D019661:Apiaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008516:Medicine, Chinese Traditional; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry; D027343:Rhizome / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D006027:Glycosides; D010936:Plant Extracts; D012717:Sesquiterpenes