Trachelosperoside B-1

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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]

C36H58O12: 682.392

Mp: 226–230°C (MeOH) [1]

[α]D18 + 9.8° (c 0.50, MeOH) [1]

FAB-MSm/z: 705 (M + Na)+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 5.53 (brs, H-12), 2.91 (s, H-18), 3.99, 4.62 (d, J = 11.0, H2-23), 4.26, 4.85 (d, J = 11.0, H2-24), 1.17, 1.22, 1.37, 1.61 (s, CH3 × 4), 1.06 (d, J = 7.0, CH3-30)

β-D-Glcp: 6.28 (d, J = 8.0, H-1) [1]

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

Table 1

C-1

48.0

C-16

26.1

Glc-1

95.8

2

69.1

17

48.6

2

74.0

3

79.8

18

54.4

3

78.9

4

47.8

19

72.6

4

71.2

5

48.3

20

42.1

5

79.2

6

19.4

21

26.7

6

62.3

7

33.5

22

37.7

   

8

40.6

23

64.3

   

9

48.0

24

62.9

   

10

38.1

25

16.7

   

11

24.4

26

17.4

   

12

128.3

27

24.5

   

13

139.2

28

176.9

   

14

42.1

29

27.0

   

15

29.2

30

17.4

   

References

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

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