Ilexoside L

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – Bredemolic Acid

Biological source: Ilex rotunda [1]

C42H66O15: 810.440

Mp: 250–252°C (MeOH) [1]

[α]D22 + 5.3° (c 7.9, MeOH) [1]

FAB-MSm/z: 809 [M-H] [1]

EI-MSm/z: 454 (3), 410 (18), 248 (36), 224 (16), 206 (28), 203 (42), 175 (52), 146 (100)

1H NMR (400 MHz, J/Hz, C5D5N): 0.76, 0.88, 0.93, 1.06, 1.29, 1.53 (s, CH3 × 6), 3.60 (dd, J = 11.0, 4.0, H-3), 3.62, 4.35 (d, J = 11.0, H2-24), 5.42 (brt, H-12)

β-D-GlcUAp: 5.13 (d, J = 7.5, H-1)

β-D-Glcp: 6.30 (d, J = 7, H-1) [1]

13 C NMR (100 MHz, C 5D 5N): [ 1]

Table 1

C-1

38.5

C-16

24.0

GlcUA-1

106.5

2

26.8

17

47.0

2

75.4

3

89.0

18

41.8

3

78.0

4

44.4

19

46.2

4

73.5

5

56.1

20

30.8

5

78.1

6

18.9

21

34.0

6

172.9

7

32.6

22

33.4

Glc-1

95.8

8

39.9

23

23.4

2

74.2

9

47.9

24

63.3

3

78.9

10

36.7

25

15.4

4

71.1

11

23.4

26

17.4

5

79.4

12

122.9

27

26.1

6

62.2

13

144.1

28

176.5

   

14

42.2

29

33.2

   

15

28.3

30

References

  1. 1.
    K. Amimoto, K. Yoshikawa, S. Arihara, Chem. Pharm. Bull. 41(1), 77 (1993)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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