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Trachelosperoside B-2

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – Trachelosperogenin B

Biological source: Trachelospermum asiaticum [1]

C41H66O16: 814.435

[α]D30 + 3.7° (c 1.32, MeOH) [1]

FAB-MSm/z: 837 (M + Na)+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 5.54 (brs, H-12), 2.90 (s, H-18), 1.10, 1.12, 1.39, 1.61 (s, CH3 × 4), 1.07 (d, J = 7.0, CH3-30)

β-D-Glcp: 6.16 (d, J = 8.0, H-1)

β-D-Xylp: 5.39 (d, J = 7.0, H-1) [1]

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

Table 1

C-1

48.0

C-16

25.9

Glc-1

93.7

2

69.1

17

48.7

2

80.7

3

79.7

18

54.4

3

78.4

4

47.9

19

72.7

4

71.2

5

48.1

20

42.1

5

79.0

6

19.2

21

26.8

6

62.3

7

33.5

22

37.5

Xyl-1

106.1

8

40.7

23

64.4

2

76.0

9

48.1

24

62.6

3

78.7

10

38.1

25

16.7

4

71.0

11

24.5

26

17.4

5

67.4

12

128.1

27

24.5

   

13

139.4

28

176.9

   

14

42.1

29

27.1

   

15

29.4

30

17.2

   

References

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

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