title: Two triterpenoid saponins from Heinsia crinata.
abstract: Two new triterpenoid saponins isolated from the root bark of Heinsia crinata were characterized as heinsiagenin A-3 beta-O-(beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl- (1-->6)-[alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranosyl-(1-->2)- beta-D-glucopyranoside) and heinsiagenin A-3 beta-O-(alpha-L-rhamnopyranosyl-(1-->2)-beta-D- glucopyranosyl-(1-->2)-beta-D-glucopyranoside). The structures were deduced mainly from a combination of 1- and 2D NMR experiments.
authors.affiliation: Laboratoire de Chimie des Substances Naturelles, Université de Kinshasa, Zaïre.
authors.lastname: Babady-Bila
authors.forename: C
authors.initials: C
authors.lastname: Wynants
authors.forename: S
authors.initials: S
authors.lastname: Toppet
authors.forename: A
authors.initials: A
authors.lastname: Kilonda
authors.forename: G
authors.initials: G
authors.lastname: Hoornaert
mesh_terms: D002240:Carbohydrate Sequence; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D018517:Plant Roots / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D012503:Saponins; D014315:Triterpenes; C090270:heinsiagenin A 3-O-(glucopyranosyl-1-2-glucopyranosyl-1-6-(rhamnopyranosyl-1-2)glucopyranosyl-1-2-glucopyranoside); C090271:heinsiagenin A 3-O-(rhamnopyranosyl-1-2-glucopyranosyl-1-2-glucopyranoside)