title: New cucurbitane-type triterpenoids from Bryonia aspera.
abstract: Phytochemical investigation of the chloroform extract of BRYONIA ASPERA roots resulted in the isolation and structure elucidation of two new cucurbitacins (1, 2) together with eight known cucurbitane derivatives (6-13), the pentacyclic triterpene bryonolic acid (5) and two hydroxybenzoic acid amides (3, 4). Their structures were elucidated by spectroscopic analysis, including 2D NMR techniques.
authors.affiliation: Pharmacognosy Department, School of Pharmacy, Shaheed Beheshti University of Medical Sciences, Tehran, Iran. ssahranavard@itmrc.org
authors.forename: Shamim
authors.initials: S
authors.lastname: Sahranavard
authors.forename: Farzaneh
authors.initials: F
authors.lastname: Naghibi
authors.forename: Karsten
authors.initials: K
authors.lastname: Siems
authors.forename: Kristina
authors.initials: K
authors.lastname: Jenett-Siems
mesh_terms: D019817:Benzoic Acid / Q000302:isolation & purification; D029772:Bryonia / Q000737:chemistry*; D006027:Glycosides / Q000302:isolation & purification; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D006027:Glycosides; D010936:Plant Extracts; D014315:Triterpenes; C514277:cucurbitane; C038105:cucurbitacin D; D019817:Benzoic Acid; C474429:cucurbitacin C; C074984:bryonolic acid