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Vina-Ginsenoside-R1

Reference work entry

CAS Registry Number: 156980-41-5 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Dammarane Type – 20(S),24(R)-Epoxy-dammar-3β,6α,12β,25-tetraol

Biological source: Panax vietnamensis [1]

C44H74O15: 842.502

[α]D25−23.1° (c 1.08, MeOH) [1]

FAB-MSm/z: 841 [M-H], 695 [M-H-Rha], 491 [M-H-(Rha-Ac-Glc)] [1]

EI-MS (TMSi deriv) m/z: 711 [(Glc-Rha)AcTMSi5], 621 (711-TMSiOH), 363 [(terminalRha)TMSi3], 273 (363-TMSiOH) [1]

1H NMR (J/Hz, C5D5N): 1.01, 1.09, 1.31, 1.32, 1.34, 1.34 (overlapped), 1.46, 2.10 (s, CH3 × 8), 2.11 (s, CH3CO)

β-D-Glcp: 5.26 (d, J = 6.7, H-1)

α-L-Rhap: 6.49 (brs, H-1); 1.80 (d, J = 6.2, CH3-6) [1]

13 C NMR (C 5D 5N): [ 1]

Table 1

C-1

39.5

C-16

25.7

Glc-1

102.0

2

27.7

17

49.4

2

79.0

3

78.2

18

17.7

3

78.3

4

39.8

19

17.5

4

72.2

5

60.7

20

87.0

5

75.4

6

73.4

21

26.9

6

64.9

7

46.0

22

32.5

Ac

170.7

8

41.1

23

28.6

 

20.9

9

49.8

24

88.3

Rha-1

101.2

10

36.9

25

70.0

2

72.2

11

32.1

26

26.4

3

72.3

12

70.8...

References

  1. 1.
    M.D. Nguyen, T.N. Nguyen, R. Kasai, A. Ito, K. Yamasaki, O. Tanaka, Chem. Pharm. Bull. 41(11), 2010 (1993)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

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