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1. (Article ID: 12019)
 
Barrero AF, Haïdour A, Sedqui A, Mansour AI, Rodríguez-Garcia I, Löpez A, Muñoz-Dorado M
Saikosaponins from roots of Bupleurum gibraltaricum and Bupleurum spinosum
Phytochemistry 54(8) (2000) 741-745
 

Two new saikosaponins have been identified in the butanolic fraction of the ethanol extract of the roots of Bupleurum spinosum: 3β,16α,23,28-tetrahydroxyoleana-11,13(18)-dien-30-oic acid 3-O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl-(1→3)-β-D-fucopyranoside, and 3β,16α,23,28,30-pentahydroxyoleana-11,13(18)-diene 3-O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl-(1→3)-β-D-fucopyranoside. 3β,16β,23-trihydroxy-13,28-epoxyolean-11-ene 3-O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl-(1→3)-β-D-fucopyranoside was also isolated, and this structure agreed with the one proposed for bupleuroside I, but their spectroscopic data have not been described until now. From the same fraction of the roots of Bupleurum gibraltaricum, the known compound buddlejasaponin IV has been isolated as the predominant component (90%). Structures were elucidated using spectroscopic analysis, specially 2D-NMR experiments.

Umbelliferae, Bupleurum spinosum, Bupleurum gibraltaricum, saikosaponins, bupleuroside I

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