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Glycoside L-E2 from Hedera canariensis

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 30-nor-hederagenin

Biological source: Hedera canariensis [1]

C40H62O12: 734.424

1H NMR (J/Hz, C5D5N): 4.20 (dd, H-3), 5.39 (brt, J = 3.0, H-12), 3.10 (dd, J = 6.0, 14.0, H-18), 2.50 (t, J = 14.0, H-19), 2.05 (H-19), 4.05 (d, J = 11.0, Ha-23), 3.68 (Hb-23), 4.71 (m, Ha-29), 4.67 (m, Hb-29), 1.13, 0.95. 0.90, 0.82 (s, CH3 × 4)

α-L-Arap: 5.07 (d, J = 6.0, H-1), 4.48 (dd, J = 8.0, H-2), 4.09 (dd, J = 3.5, H-3), 4.16 (m, H-4), 3.68 (dd, J = 2.5, 12.0, Ha-5), 4.22 (dd, J = 3.5, Hb-5)

α-L-Rhap: 6.09 (d, J = 1.5, H-1), 4.67 (dd, J = 3.5, H-2), 4.57 (dd, J = 9.5, H-3), 4.24 (t, J = 9.5, H-4), 4.59 (d, H-5), 1.56 (d, J = 6.5, CH3-6) [1]

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

Table 1

C-1

39.2

C-16

24.0

Ara-1

104.5

2

26.7

17

47.3

2

76.1

3

81.3

18

48.1

3

74.1

4

43.7

19

42.2

4

69.4

5

47.8

20

149.3

5

65.4

6

18.4

21

30.2

Rha-1

101.9

7

33.0

22

38.6

2

72.4

8

40.0

23

64.1

3

References

  1. 1.
    A.S. Shashkov, V.I. Grishkovets, L.A. Yakovishin, I.N. Shchipanova, V.Ya. Chirva, Chem. Nat. Comp. 34(6), 690 (1998)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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