Glycoside A

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – Hopan-28,22-lactone-17β,24-diol

Biological source: Diplazium subsinuatum [1]

C36H58O9: 634.408

Mp: 305–310°C (MeOH) [1]

IR (KBr) νmax cm−1: 3400, 2925, 1720, 1080, 1020 [1]

MSm/z: 634 (M+), 472, 454, 410, 207, 189, 109 [1]

1H NMR (100 MHz, J/Hz, C5D5N): 0.89, 1.11, 1.17, 1.17, 1.26, 1.49 (s, CH3 × 6), 4.86 (d, J = 8, H-1 of Glc) [1]

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

Table 1

C-1

40.6

C-16

31.5

Glc-1

104.0

2

18.8

17

77.9

2

75.4

3

37.7

18

55.8

3

78.2

4

38.5

19

33.8

4

71.6

5

57.4

20

23.5

5

78.4

6

19.1

21

53.3

6

62.9

7

34.6

22

80.1

   

8

42.2

23

28.1

   

9

51.4

24

73.0

   

10

37.7

25

16.8

   

11

22.4

26

16.8

   

12

25.4

27

15.9

   

13

41.0

28

176.6

   

14

42.2

29

30.5

   

15

27.5

30

29.3

   

References

  1. 1.
    N. Tanaka, K. Yamauchi, T. Murakami, Y. Saiki, C.-M. Chen, Chem. Pharm. Bull. 30(10), 3632 (1982)CrossRefGoogle Scholar

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