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Trachelosperoside C-2

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – 2α,3β,19α,24-Tetrahydroxy-urs-12-en-23,28-dioic Acid

Biological source: Trachelospermum asiaticum [1]

C43H68O18: 872.440

[α]D18 + 1.4° (c 1.40, MeOH) [1]

FAB-MSm/z: 895 (M + Na)+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 5.53 (brs, H-12), 2.93 (s, H-18), 1.23, 1.25, 1.39, 1.66 (s, CH3 × 4), 1.08 (d, J = 7.0, CH3-30), 3.89 (COOMe)

β-D-Glcp: 6.30 (d, J = 8.0, H-1)

β-D-Glcp″: 4.95 (d, J = 8.0, H-1) [1]

13 C NMR (400 MHz, C 5D 5N): [ 1]

Table 1

C-1

47.7

C-16

26.1

Glc-1

95.8

2

66.5

17

48.6

2

74.0

3

92.0

18

54.4

3

78.9

4

59.3

19

72.6

4

71.2

5

53.3

20

42.1

5

79.2

6

22.6

21

26.7

6

62.4

7

33.8

22

37.6

Glc′-1

105.7

8

40.6

23

176.3

2

74.8

9

48.1

24

62.3

3

78.7

10

38.0

25

16.7

4

71.4

11

24.3

26

17.0

5

78.3

12

128.0

27

24.4

6

62.0

13

139.1

28

176.8

   

14

42.0

29

27.0

   

15

29.1

30

16.7

   
   

OMe

52.1

   

References

  1. 1.
    F. Abe, T. Yamauchi, Chem. Pharm. Bull. 35(5), 1748 (1987)CrossRefGoogle Scholar

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