Koryoginsenoside-R2

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Upper classes



Koryoginsenoside R2
Koryoginsenoside-R2.png
Structural Information
Systematic Name (3beta,12beta,22E)-20-((6-O-beta-D-Glucopyranosyl-beta-D-glucopyranosyl)oxy)-12,25-dihydroxydammar-22-en-3-yl 2-O-beta-D-glucopyranosyl-beta-D-glucopyranoside
Common Name
  • Koryoginsenoside R2
Symbol
Formula C54H92O24
Exact Mass 1124.597853872
Average Mass 1125.29388
SMILES O(C1OC(C8(C)C)CCC(C78)(C(C(C)(CC7)3)CC(C(C(C(C)(OC(O5)C(O)C(C(O)C(COC(O6)C(C(C(C6CO)O)O)O)5)O)C=CCC(C)(C)O)4)C3(CC4)C)O)C)C(C(C(C(OC(O2)C(C(C(O)C(CO)2)O)O)1)O)O)CO
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

M.P. 177 - 180 °C
1H-NMR (C5D5N, 400 MHz) 0.83 (s, 3xH-30), 0.88 (s, 3xH-19), 1.02 (s, 3xH-18), 1.09 (s, 3xH-29), 1.27 (s, 3xH-28), 1.58 (s, 3xH-27), 1.62 (s, 3xH-26), 1.63 (s, 3xH-21), 2.87 (dd, J=13.2, 5.8 Hz, H-22alpha), 3.09 (dd, J=12.5, 4.7 Hz, H-22beta), 3.25 (dd, J=11.5, 4.2 Hz, H-3), 4.02 (dd, J=10.7, 8.2 Hz, H-12), 4.90 (d, J=7.6 Hz, H-1 of Glc II), 5.09 (d, J=7.5 Hz, H-1 of Glc III), 5.17 (d, J=7.8 Hz, H-1 of Glc IV), 5.37 (d, J=7.8 Hz, H-1 of Glc I), 6.12 (d, J=15.6 Hz, H-24), 6.15 (ddd, J=15.6, 8.5 Hz, H-23)
13C-NMR (C5D5N, 100 MHz) C-1) 39.3, (2) 26.8, (3) 89.2, (4) 40.2, (5) 56.6, (6) 18.6, (7) 35.2, (8) 40.2, (9) 50.3, (10) 37.1, (11) 31.0, (12) 70.6, (13) 49.7, (14) 51.6, (15) 30.7, (16) 26.4, (17) 52.2, (18) 16.3, (19) 16.1, (20) 83.5, (21) 23.5, (22) 138.2, (23) 126.7, (24) 39.8, (25) 81.4, (26) 25.5, (27) 25.2, (28) 28.2, (29) 16.7, (30) 17.3 Glc I (1) 105.0, (2) 83.3, (3) 78.3, (4) 71.8, (5) 78.4, (6) 63.0 Glc II (1) 106.0, (2) 77.1, (3) 78.8, (4) 71.9, (5) 78.4, (6) 63.0 Glc III (1) 98.2, (2) 75.3, (3) 78.0, (4) 71.9, (5) 77.1, (6) 70.1 Glc IV (1) 105.1, (2) 75.3, (3) 78.3, (4) 71.9, (5) 78.4, (6) 63.0

C.-R. Yang et al., Phytochemistry, 40, 4193 (1995).

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