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Latifoloside D

Reference work entry

CAS Registry Number: 194660-83-8 Open image in new window

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

Biological source: Ilex latifolia [1]

C47H76O17: 912.508

Mp: 212–215°C [1]

IR (KBr) νmax cm−1: 3420, 2930, 1733, 1641, 1450, 1387, 1074, 1026 [1]

FAB-MSm/z: 911 [M-1], 749 [M-1-162], 603 [M-1-162-146], 471 [M-1-162-146-132], 453 [M-1-162-146-132-H2O] [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.88, 1.06, 1.13, 1.16, 1.40, 1.71 (s, CH3 × 6), 0.96 (dd, J = 6.6, 3H), 3.18 (dd, J = 11.4, 4.4, Hα-3), 3.16 (brs, Hα-18), 5.27 (s, HO-19), 5.49 (brs, H-12)

α-L-Arap: 4.88 (d, J = 5.1, H-1)

α-L-Rhap: 6.13 (brs, H-1), 1.60 (d, J = 5.7, CH3-6)

β-D-Glcp: 6.30 (d, J = 7.9, H-1) [1]

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

Table 1

C-1

39.2

C-16

24.9

Ara-1

104.9

Glc-1

96.0

2

27.0

17

48.6

2

76.2

2

73.8

3

89.1

18

47.4

3

74.2

3

79.0

4

39.7

19

73.6

4

68.8

4

71.2

5

56.2

20

42.9

5

64.7

5

79.4

6

18.9

21

26.8

Rha-1

101.9

6

62.3

7

32.1...

References

  1. 1.
    M.-An. Ouyang, H.-Q. Wang, Y.-Q. Liu, Ch.-R. Yang, Phytochemistry 45, 1501 (1997)CrossRefGoogle Scholar

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