Goyaglycoside-d

Reference work entry

CAS Registry Number: 333332-50-6 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Cucurbitane Type – 19(R)-Methoxy-5β,19-epoxy-cucurbita-6,23-diene-3β,25-diol

Biological source: Momordica charantia [1]

C38H62O9: 662.439

[α]D26−141.1° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3434, 1082, 1034 [1]

FAB-MSm/z: 661 [M-H], 499 [M-C6H11O5] [1]

1H NMR (270 MHz, J/Hz, C5D5N): 0.83 (s, CH3-29), 0.93 (s, CH3-18), 0.93 (s, CH3-30), 0.99 (d, J = 5.4, CH3-21), 1.33 (s, CH3-26), 1.33 (s, CH3-27), 1.44 (s, CH3-28), 3.14 (dd-like, H-8), 3.22 (H-25), 3.50 (CH3O-19), 3.69 (brs, H-3), 4.89 (s, H-19), 5.55 (d, J = 15.8, H-24), 5.62 (dd, J = 3.7, 9.7, H-7), 5.66 (ddd, J = 5.6, 8.6, 5.8, H-23), 6.15 (dd, J = 1.8, 9.8, H-6)

β-D-Allp: 5.43 (d, J = 7.7, H-1) [1]

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

Table 1

C-1

18.7

C-16

28.1

All-1

102.3

2

27.3

17

50.4

2

73.6

3

83.4

18

14.9

3

71.6

4

39.0

19

112.2

4

69.2

5

85.4

20

36.3

5

76.3

6

132.9

21

18.9...

References

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

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