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Gymnemasaponin III

Reference work entry

CAS Registry Number: 133629-82-0 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 23-Hydroxy-longispinogenin

Biological source: Gymnema sylvestre [1]

C48H80O19: 960.529

Mp: 203–205°C [1]

[α]D + 11.6° (c 1.1, MeOH) [1]

FAB-MSm/z: 983 [M + Na]+ [1]

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

Table 1

C-2

27.4

Glc-1

105.2

Glc′-1

105.7

Glc″-1

105.4

3

72.3

2

75.3

2

75.1

2

74.8

4

42.9

3

78.7

3

78.6

3

78.4

15

36.9

4

71.9

4

71.6

4

71.4

16

66.3

5

78.4

5

77.3

5

78.4

17

41.4

6

63.0

6

69.8

6

62.8

23

75.1

           

24

13.2

           

28

77.9

           

References

  1. 1.
    K. Yoshikawa, S. Arihara, K. Matsuura, Tetrahedron Lett. 32, 789 (1991)CrossRefGoogle Scholar

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