Minor constituents from Bupleurum fruticosum roots.
A new triterpenoid saponin, 23-acetoxy,16 alpha-hydroxy-13,28-epoxyolean-11-en-3 beta-yl--beta-D-glucopyranosyl- (1-->2)---beta-D-glucopyranosil(1-->3)-beta-D-fucopyranoside, has been isolated from the roots of Bupleurum fruticosum, along with eight coumarins, scopoletin, scoparone, prenyletin, capensin, fraxetin, aesculetin,7-(3-methyl-2-butenyloxy-6-methoxycoumarin, 7-(2-hydroxy-3-methyl-3-butenyloxy)-6-methoxycoumarin and 5,7-dihydroxy-6-methoxy-8-(3-methyl-2-butenyl)coumarin. The last compound has not been previously encountered in nature. The structures were determined by analysis of NMR spectral data including two-dimensional techniques.
Pistelli
L
L
Dipartimento di Chimica Bioorganica, Università di Pisa, Italy.
Bertoli
A
A
Bilia
A R
AR
Morelli
I
I
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D003374:Coumarins / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D009904:Optical Rotation; D018517:Plant Roots; D010946:Plants, Medicinal; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared
D003374:Coumarins; D012503:Saponins