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Glycoside B

Reference work entry

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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]

C41H66O13: 766.450

Mp: 295–301°C (MeOH) [1]

[α]D20 −1.6° (c 0.60, C5H5N) [1]

IR (KBr) νmax cm−1: 3380, 2920, 1710, 1070, 1020 [1]

MSm/z: 634, 472 (Aglycon), 454, 410, 369, 207, 109 [1]

1H NMR (100 MHz, J/Hz, C5D5N): 0.77 (3H, s), 1.09 (3H, s), 1.14 (3H, s), 1.19 (3H, s), 1.25 (3H, s), 1.49 (3H, s) [1]

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

Table 1

C-1

40.7

C-16

31.4

Glc-1

104.2

2

18.8

17

77.8

2

78.7

3

36.3

18

55.7

3

77.7

4

38.2

19

33.7

4

71.5

5

57.4

20

23.4

5

78.1

6

19.0

21

53.2

6

62.6

7

34.5

22

80.0

Ara-1

109.4

8

42.2

23

28.1

2

80.8

9

51.3

24

72.7

3

78.1

10

37.6

25

16.8

4

88.2

11

22.4

26

16.8

5

62.6

12

25.3

27

15.8

   

13

40.9

28

176.5

   

14

42.2

29

30.4

   

15

27.5

30

29.2

   

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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© Springer Science+Business Media New York 2013

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