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Goyaglycoside-f

Reference work entry

CAS Registry Number: 333333-13-4 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Cucurbitane Type – 5,19-Epoxy-5β-cucurbita-6,24-diene-3β,23-diol

Biological source: Momordica charantia [1]

C42H68O13: 780.465

[α]D27−51.9° (c 0.5, EtOH) [1]

IR (KBr) νmax cm−1: 3410, 1082, 1032 [1]

FAB-MSm/z: 779 [M-H], 617 [M-C6H11O5]; 781 [M + H]+ [1]

1H NMR (270 MHz, J/Hz, C5D5N): 3.69 (brs, H-3), 6.19 (d, J = 9.2, H-6), 5.61 (dd-like, H-7), 2.31 (brs, H-8), 0.79 (s, CH3-18), 3.67, 3.61 (q, J = 8.2, H2-19), 1.12 (d, J = 6.3, H-21), 5.56 (d-like, H-24), 1.68 (s, CH3-26), 1.71 (s, CH3-27), 1.49 (s, CH3-28), 0.92 (s, CH3-29), 0.89 (s, CH3-30)

β-D-Glcp: 4.87 (d, J = 7.6, H-1)

β-D-Allp: 5.43 (d, J = 7.9, H-1) [1]

13 C NMR (68 MHz, C 5D 5N): [ 1]

Table 1

C-1

18.9

C-16

28.3

All-1

101.5

2

27.6

17

51.3

2

72.7

3

85.3

18

15.0

3

73.2

4

39.1

19

80.2

4

69.4

5

85.9

20

32.7

5

75.7

6

134.1

21

19.4

6

63.3

7

130.0

22

43.7

Glc-1

106.6

8

52.3...

References

  1. 1.
    T. Murakami, A. Emoto, H. Matsuda, M. Yoshikawa, Chem. Pharm. Bull. 49(1), 54 (2001)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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