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Latifoloside A

Reference work entry

CAS Registry Number: 55965-02-1 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – Pomolic Acid

Biological source: Ilex latifolia [1]

C47H76O17: 912.508

Mp: 207–210°C [1]

IR (KBr) νmax cm−1: 3433, 2933, 1734, 1647, 1458, 1386, 1074, 1028 [1]

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

1H NMR (400 MHz, J/Hz, C5D5N): 0.89, 1.07, 1.39, 1.75 (s, CH3 × 4), 1.05 (d, J = 6.4, 3H), 2.92 (brs, Hβ-18), 3.23 (dd, J = 11.3, 4.2, Hα-3), 5.55 (brs, H-12)

α-L-Arap: 4.88 (d, J = 5.2, H-1)

α-L-Rhap: 6.11 (brs, H-1), 1.61 (d, J = 6.2, CH3-6)

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

39.1

C-16

26.2

Ara-1

104.8

Glc-1

96.0

2

26.8

17

48.8

2

76.1

2

73.7

3

89.1

18

54.6

3

74.2

3

79.0

4

39.6

19

72.8

4

68.6

4

71.4

5

56.1

20

42.2

5

64.5

5

79.3

6

18.9

21

26.7

Rha-1

101.9

6

62.5

7

33.6

22

37.9

2

72.7

   

8

40.7

23...

References

  1. 1.
    M.-A. Ouyang, H.-Q. Wang, Y.-Q. Liu, Ch.-R. Yang, Phytochemistry 45(7), 1501 (1997)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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