20-Glucoginsenoside-Rf

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Upper classes



20-Glucoginsenoside Rf
20-Glucoginsenoside-Rf.png
Structural Information
Systematic Name (3beta,6alpha,12beta)-20-(beta-D-Glucopyranosyloxy)-3,12-dihydroxydammar-24-en-6-yl 2-O-beta-D-glucopyranosyl-beta-D-glucopyranoside
Common Name
  • 20-Glucoginsenoside Rf
  • 20-O-Glucoginsenoside Rf
  • Dammarane beta-D-glucopyranoside deriv.
Symbol
Formula C48H82O19
Exact Mass 962.545030442
Average Mass 963.15328
SMILES C(OC(C4)C(C(C)(C)3)C(C)(C(C7)C4(C(C(C7O)5)(C)CCC5C(C)(CCC=C(C)C)OC(C(O)6)OC(CO)C(O)C6O)C)CCC3O)(C1OC(O2)C(C(C(O)C2CO)O)O)OC(CO)C(C1O)O
Physicochemical Information
Melting Point
Boiling Point
Density
Optical Rotation
Reflactive Index
Solubility
Spectral Information
Mass Spectra
UV Spectra
IR Spectra
NMR Spectra
Chromatograms





Spectroscopic Data

Free acid
M.P.1 182 - 184 °C
IR (KBr)1 3420 (OH), 1620 (C=C) cm-1
Dodeca methyl derivative (12-OH is free)
M.P.1 92 - 93 °C
IR (KBr)1 3438 (12-OH) cm-1
1H-NMR (CDCl3)2 0.88 (s, CH3), 0.92 (s, CH3), 0.95 (s, CH3), 1.01 (s, CH3), 1.26 (s, CH3), 1.33 (s, CH3), 1.59 (s, CH3), 1.67 (s, CH3), 3.33-3.63 (12xOCH3), 4.34 (d, J=7.0 Hz, anomeric H), 4.48 (d, J=7.0 Hz, anomeric H), 4.65 (d, J=7.0 Hz, anomeric H)

1) J. Shoji et al., Chem.Pharm.Bull., 26, 1694 (1978)., 2) J. Zhou et al., Yannan Zhiwu Yanjiu, 6, 118 (1984).

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