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Kudinoside C

Reference work entry

CAS Registry Number: 181362-77-6 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]

C53H84O23: 1088.540

Mp: 185–187°C [1]

[α]D20−31.0° (c 0.15, C5H5N) [1]

IR (KBr) νmax cm−1: 3450–3200, 1728, 1640, 1450, 1380, 1070, 1040 [1]

FAB-MS m/z: 1095 [M + Li]+, 1111 [M + Na]+, 949 [M + Li-146]+, 931 [M + Li-162]+, 607 [132 + 146 + (2 × 162)]+ [1]

1H NMR (100 MHz, J/Hz, C5D5N): 0.85, 0.88, 1.16, 1.23, 1.49, 1.61, 1.64 (s, CH3 × 7)

α-L-Arap: 4.76 (d, J = 7.0, H-1)

α-L-Rhap: 6.40 (brs, H-1)

β-D-Glcp: 5.13 (d, J = 7.9, H-1), β-D-Glcp′: 5.24 (d, J = 8.0, H-1) [1]

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

Table 1

C-1

39.3

C-16

26.8

Ara-1

105.1

Glc′-1

106.4

2

28.2

17

44.1

2

74.4

2

76.2

3

88.5

18

137.8

3

83.0

3

78.2

4

39.6

19

74.4

4

69.4

4

70.5

5

56.3

20

85.7

5

65.8

5

78.9

6

18.6

21

28.3

Glc-1

103.1

6

62.0

7

35.5

22

32.9

2

84.9

Rha-1

101.0

8

41.7

23

28.2

3

78.4

2

72.4...

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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