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Zygoeichwaloside K

Reference work entry

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

Biological source: Zygophyllum eichwaldii [1]

C42H69O17S: 877.425

Mp: 212–214°C [1]

[α]D22 + 32.3±2° (c 0.4, C5H5N) [1]

IR (KBr) νmaxcm−1: 3418, 2939, 1732, 1648, 1460, 1389, 1238, 1221, 1142, 1072, 836, 773, 649 [1]

1H NMR (500 MHz, J/Hz, C5D5N): 3.32 (H-3), 5.53 (H-12), 2.92 (H-18), 5.04 (HO-19), 1.44, 1.16, 0.86, 1.12, 1.70, 1.41 (s, CH3-23, 24, 25, 26, 27, 29), 1.06 (d, J = 6.4, CH3-30)

β-D-(2-O-SO3H)-Glcp: 4.82 (H-1), 5.02 (H-2), 4.38 (H-3), 4.16 (H-4), 3.90 (H-5), 4.28, 4.48 (H2-6)

β-D-Glcp′: 6.25 (H-1), 4.23 (H-2), 4.27 (H-3), 4.29 (H-4), 4.03 (H-5), 4.47, 4.40 (H2-6) [1]

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

Table 1

C-1

38.20

C-16

25.48

Glc-1

104.30

2

25.84

17

48.21

2

79.56

3

89.10

18

53.80

3

78.30

4

38.95

19

72.70

4

70.57

5

55.30

20

41.54

5

77.81

6

18.10

21

26.10

6

68.20

7

32.87

22

37.23

Glc′-1

95.20

8

39.89

23

27.72

2

73.40

References

  1. 1.
    S.A. Sasmakov, Zh.M. Putieva, U. Lindequist, Pharmazie 62(12), 957 (2007)Google Scholar

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© Springer Science+Business Media New York 2013

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