6''-Malonoylginsenoside Rb2

From Metabolomics.JP
Jump to: navigation, search



Upper classes



Malonyl-ginsenoside Rb2
6''-Malonoylginsenoside Rb2.png
Structural Information
Systematic Name (3beta,12beta)-20-[(6-O-alpha-L-Arabinopyranosyl-beta-D-glucopyranosyl)oxy]-12-hydroxydammar-24-en-3-yl 2-O-[6-O-(carboxyacetyl)-beta-D-glucopyranosyl]-beta-D-glucopyranoside
Common Name
  • Malonyl-ginsenoside Rb2
  • Dammarane beta-D-glucopyranoside deriv.
  • Ginsenoside mRb2
  • MG-Rb2
Symbol
Formula
Exact Mass
Average Mass
SMILES
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. 148 - 150 °C
IR (KBr) 3381 (OH), 2928, 1730, 1628, 1380, 1067 cm-1
Methyl ester
1H-NMR (C5D5N) 0.91 (s, CH3), 0.98 (s, 3xCH3), 1.14 (s, CH3), 1.34 (s, CH3), 1.63 (s, 3xH-26) and 1.66 (s, 3xH-27), 3.63 (s, COOCH3), 3.70 (s, OC-CH2-CO))
13C-NMR (C5D5N, 22.5MHz) C-3) 89.3, (12) 70.2, (20) 83.5 Glc I (1) 104.9, (2) 84.2, (3) 78.0, (4) 72.1, (5) 78.6, (6) 62.9 Glc II (1) 106.1, (2) 76.6, (3) 79.1, (4) 71.0, (5) 75.2, (6) 65.5 Glc III (1) 98.1, (2) 74.7, (3) 78.0, (4) 71.5, (5) 76.6, (6) 69.2 Ara (1) 104.5, (2) 71.8, (3) 73.8, (4) 68.4, (5) 65.4 Malonoyl (1) 167.2, (2) 41.6, (3) 167.2, (OCH3) 52.2

Y. Nakagawa et al., Chem.Pharm.Bull., 37, 2961 (1989).

Personal tools
Namespaces

Variants
Actions
Navigation
metabolites
Toolbox