6533b835fe1ef96bd129e88e

RESEARCH PRODUCT

Two New Triterpene Saponins fromAcanthophyllum laxiusculum

Chiaki TanakaTomofumi MiyamotoTayebe Baghery LotfabadAnne Claire Mitaine-offerDavid PertuitMarie Aleth Lacaille-dubois

subject

Inorganic Chemistrychemistry.chemical_classificationTerpeneAcanthophyllum laxiusculumTriterpenechemistryStereochemistryOrganic ChemistryDrug DiscoveryGlycosidePhysical and Theoretical ChemistryBiochemistryCatalysis

description

Two new triterpene glycosides, 1 and 2, together with three known ones, were isolated from roots of Acanthophyllum laxiusculum Schiman-Czeika. The structures of the new compounds were established by extensive 1D- and 2D-NMR spectroscopic experiments and MS analyses as 23-O-β-D-galactopyranosylgypsogenic acid 28-O-{β-D-glucopyranosyl-(1→2)-6-O-[4-carboxy-3-hydroxy-3-methyl-1-oxobutyl]-β-D-glucopyranosyl-(1→6)}-[β-D-glucopyranosyl-(1→3)]-β-D-galactopyranosyl ester (1) and gypsogenic acid 28-O-{β-D-glucopyranosyl-(1→2)-6-O-[4-carboxy-3-hydroxy-3-methyl-1-oxobutyl]-β-D-glucopyranosyl-(1→6)}-[β-D-glucopyranosyl-(1→3)]-β-D-galactopyranosyl ester (2).

https://doi.org/10.1002/hlca.201400253