title: Saponins from Hacquetia epipactis.
abstract: Four new estersaponins were isolated from hacquetia epipactis. Using GC-MS, FAB-MS and various 2D-NMR techniques they were identified as 3-O-[beta-D-glucopyranosyl-(1-->2)-[alpha-L-arabinopyranosyl-(1--> 3)]- beta-D-glucuronopyranosyl-(1-->)]-21-acetyl-22-(2-methylbutyryl)- barringtogenol C (hacquetiasaponin 1), the corresponding 21-(2-acetoxy-2-methylbutyryl)-22-acetyl-derivative (hacquetiasaponin 2), 3-O-[beta-D-glucopyranosyl-(1-->2)-[alpha-L-arabinopyranosyl- (1-->3)]-beta-D-glucuronopyranosyl-(1-->)]-21-acetyl-22-(2-methylb utyryl)- R1-barrigenol (hacquetiasaponin 3) and its corresponding 21-(2-acetoxy-2-methylbutyryl)-22-acetyl-derivative (hacquetiasaponin 4).
authors.affiliation: Katedra i Zaklad Farmakognozji i Fitochemii, Slaska Akademia Medyczna, Sosnowiec, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Burczyk
authors.forename: G
authors.initials: G
authors.lastname: Reznicek
authors.forename: S
authors.initials: S
authors.lastname: Baumgarten
authors.forename: M
authors.initials: M
authors.lastname: Hugh-Bloch
authors.forename: J
authors.initials: J
authors.lastname: Jurenitsch
authors.forename: H
authors.initials: H
authors.lastname: Schröder
authors.forename: U
authors.initials: U
authors.lastname: Werz
authors.forename: E
authors.initials: E
authors.lastname: Haslinger
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002850:Chromatography, Gel; D002851:Chromatography, High Pressure Liquid; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010944:Plants / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: D012503:Saponins