title: Steroidal saponins from the leaves of Beaucarnea recurvata.
abstract: Thirteen steroidal saponins were isolated from the leaves of Beaucarnea recurvata Lem. Their structures were established using one- and two-dimensional NMR spectroscopy and mass spectrometry. Six of them were identified as: 26-O-β-D-glucopyranosyl (25S)-furosta-5,20(22)-diene 1β,3β,26-triol 1-O-α-L-rhamnopyranosyl-(1→2) β-D-fucopyranoside, 26-O-β-D-glucopyranosyl (25S)-furosta-5,20(22)-diene 1β,3β,26-triol 1-O-α-L-rhamnopyranosyl-(1→2)-4-O-acetyl-β-D-fucopyranoside, 26-O-β-D-glucopyranosyl (25R)-furosta-5,20(22)-diene-23-one-1β,3β,26-triol 1-O-α-L-rhamnopyranosyl-(1→2) β-D-fucopyranoside, 26-O-β-D-glucopyranosyl (25S)-furosta-5-ene-1β,3β,22α,26-tetrol 1-O-α-L-rhamnopyranosyl-(1→4)-6-O-acetyl-β-D-glucopyranoside, 26-O-β-D-glucopyranosyl (25S)-furosta-5-ene-1β,3β,22α,26-tetrol 1-O-α-L-rhamnopyranosyl-(1→2) β-D-fucopyranoside, and 24-O-β-D-glucopyranosyl (25R)-spirost-5-ene-1β,3β,24-triol 1-O-α-L-rhamnopyranosyl-(1→2)-4-O-acetyl-β-D-fucopyranoside. The chemotaxonomic classification of B. recurvata in the family Ruscaceae was discussed.
authors: Laboratoire de Pharmacognosie, Institut de Chimie Moléculaire de Reims (ICMR), UMR-CNRS 6229, bâtiment 18, BP 1039, 51687 Reims cedex 2, France.
authors: Jacqueline
authors: J
authors: Eskander
authors: Laboratoire de Pharmacognosie, Institut de Chimie Moléculaire de Reims (ICMR), UMR-CNRS 6229, bâtiment 18, BP 1039, 51687 Reims cedex 2, France.
authors: Catherine
authors: C
authors: Lavaud
authors: Service d'analyse, Institut de Chimie Moléculaire de Reims (ICMR), UMR-CNRS 6229, bâtiment 18, BP 1039, 51687 Reims cedex 2, France.
authors: Dominique
authors: D
authors: Harakat
mesh_terms: D019668:Liliaceae / Q000737:chemistry* / Q000145:classification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010840:Phytosterols / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D010840:Phytosterols; D012503:Saponins