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Kudinoside A

Reference work entry

CAS Registry Number: 181362-75-4 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – β-Kudinlactone

Biological source: Ilex kudingcha [1]

C47H74O18: 926.487

Mp: 195–197°C [1]

[α]D20−67.8° (c 1.7, C5H5N) [1]

IR (KBr) νmax cm−1: 3450–3200, 1730, 1640, 1450, 1380, 1070, 1040 [1]

FAB-MS m/z: 926 [M], 763 [M-1-162], 701 [M-1-H20-CO2-162], 467 [M-1-H2O-162-146-132] [1]

1H NMR (100 MHz, J/Hz, C5D5N): 0.88, 0.92, 0.96, 1.29, 1.50, 1.61, 1.64 (s, CH3 × 7)

α-L-Arap: 4.76 (d, J = 4.5, H-1)

α-L-Rhap: 6.40 (brs, H-1), 1.67 (d, J = 5.9, CH3-6)

β-D-Glcp: 5.13 (d, J = 7.9, H-1) [1]

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

Table 1

C-1

39.2

C-16

26.7

Ara-1

105.5

Rha-1

101.9

2

28.5

17

44.6

2

74.4

2

72.4

3

88.9

18

137.6

3

82.5

3

72.5

4

39.9

19

74.3

4

68.4

4

74.1

5

56.4

20

86.2

5

65.0

5

70.3

6

18.8

21

28.5

Glc-1

104.8

6

18.3

7

35.7

22

32.8

2

75.1

   

8

41.9

23

28.3

3

78.2

   

9

45.1

24

17.0

4

71.5

   

10

37.3

25

16.7

5

References

  1. 1.
    M.-A. Ouyang, H.-Q. Wang, Z.-L. Chen, Ch.-R. Yang, Phytochemistry 43(2), 443 (1996)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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