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Latifoloside I

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – 3β,21α,28-Trihydoxy-urs-12-ene

Biological source: Ilex latifolia [1]

C48H80O17: 928.539

[α]D25 + 36.7° (c 0.21, MeOH) [1]

HR-FAB- MS (negative-ion mode) m/z: 927.5375 [M-1] [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.71 (dd, J = 11.3, 4.6, H-5), 0.86 (s, CH3-25), 0.94 (s, CH3-26), 0.96 (d, J = 6.7, CH3-29), 1.12 (s, CH3-27), 1.19 (s, CH3-24), 1.23 (s, CH3-23), 1.27 (d, J = 6.4, CH3-30), 2.54 (d, J = 11.6, H-18), 3.22 (dd, J = 11.3, 4.0, H-3), 3.58 (d, J = 10.4, Ha -28), 3.88 (d, J = 10.4, Hb-28), 4.32 (m, H-21)

α-L-Rhap: 6.56 (brs, H-1), 1.72 (d, J = 6.1, CH3-6)

β-D-Glcp: 4.96 (d, J = 7.5, H-1)

β-D-Glcp′: 5.08 (d, J = 7.6, H-1) [1]

13 C NMR (125 MHz, C 5D 5N): [ 1]

Table 1

C-1

39.4

C-16

26.5

Rha-1

101.6

Glc′-1

101.8

2

26.9

17

37.3

2

72.5

2

75.5

3

88.8

18

54.8

3

72.6

3

79.0

4

39.5

19

33.7

4

74.2

4

72.3

5

56.0

20

43.1

5

69.6

5

79.9

6

18.5

21

76.8

6

18.5...

References

  1. 1.
    J. Huang, X. Wang, Y. Ogihara, N. Shimizu, T. Takeda, T. Akiyama, Chem. Pharm. Bull. 49(2), 239 (2001)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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