title: Two New Triterpenoidal Saponins from Roots of Pachystela msolo.
abstract: Two new triterpenoidal saponins, pachystelanosides A (1) and B (2), and six known compounds have been isolated from the roots of Pachystela msolo. Their structures were elucidated on the basis of extensive ID and 2D NMR studies ('H, "C, DEPT, COSY, TOCSY, NOESY, HSQC, HMBC), and ESI-MS as 3-O-(β-D-glucopyranosyl-(1-->2)-β-D-apiofuranosyl-(1-->6)-β-D-glucopyranosyl)-28-O-(β-D-xylopyranosyl-(1--4)[α-L-rhamnopyranosyl-(1-->2)}-α-L-arabino- pyranosyl)-hydroxyprotobassic acid (1) and 3-O-(β-D-glucopyranosyl-(1-->2)-β-D-apiofuranosyl-(1-->6)-β-D-glucopyranosyl)-28-O-(β-D-xylopyranosyl- (1-->4)[α-L-rhamnopyranosyl-(1-->2)]-α-L-arabinopyranosyl)-7α-hydroxyprotobassic acid (2).
authors.forename: Roland N
authors.initials: RN
authors.lastname: Ache
authors.forename: Turibio K
authors.initials: TK
authors.lastname: Tabopda
authors.forename: Samuel O
authors.initials: SO
authors.lastname: Yeboah
authors.forename: Bonaventure T
authors.initials: BT
authors.lastname: Ngadjui
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D029632:Sapotaceae / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes