6533b851fe1ef96bd12a9840

RESEARCH PRODUCT

Triterpene saponins from the roots of Bupleurum spinosum Gouan

Chiaki TanakaTomofumi MiyamotoAnne Claire Mitaine-offerDalila SmatiThomas PaululatAmina DahmouneMarie Aleth Lacaille-dubois

subject

chemistry.chemical_classificationBupleurumbiology010405 organic chemistryStereochemistryPlant Sciencebiology.organism_classificationMass spectrometry01 natural sciencesBiochemistry0104 chemical sciences010404 medicinal & biomolecular chemistryTriterpenechemistry[CHIM]Chemical SciencesStratum spinosumAgronomy and Crop ScienceTwo-dimensional nuclear magnetic resonance spectroscopyHeteronuclear single quantum coherence spectroscopyBiotechnology

description

Abstract Three previously undescribed triterpene saponins, and four known ones, were isolated from the EtOH/H2O extract of the roots of Bupleurum spinosum. Their structures were characterized using spectroscopic techniques including 1D and 2D NMR (1H, 13C, COSY, TOCSY, ROESY, HSQC, and HMBC) experiments and mass spectrometry as 3-O-β-D-glucopyranosyl-(1→6)-[β-D-glucopyranosyl-(1→2)]-[α-L-rhamnopyranosyl-(1→4)]-β-D-glucopyranosyl-3β,16β,23,28-tetrahydroxyolean-12-ene, 3-O-β-D-glucopyranosyl-(1→6)-[β-D-glucopyranosyl-(1→2)]-[α-L-rhamnopyranosyl-(1→4)]-β-D-glucopyranosyl-3β,16β,28-trihydroxy-23-oxoolean-12-ene, 3-O-β-D-glucopyranosyl-(1→6)-[α-L-rhamnopyranosyl(1→4)]-β-D-glucopyranosyl-3β,16β,28-trihydroxyolean-12-ene-23-oic-acid. The chemotaxonomic significance is underlined.

10.1016/j.phytol.2020.08.007https://hal.archives-ouvertes.fr/hal-03491171