Momordin III

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 11α,12α-Epoxy-olean-13,18-olid

Biological source: Momordica cochinchinensis [1]

C42H60O14: 788.398

Mp: 232–235°C [1]

IR (KBr) νmax cm−1: 3400–3500, 1770, 1740, 870 [1]

FD-MSm/z: 815 (M + Na)+

1H NMR (J/Hz): 3.06 (brd, J = 4.0, H-11), 3.24 (d, J = 4.0, H-12), 0.83, 0.89, 0.92, 0.94, 1.13, 1.26, 1.26 (s, CH3 × 7)

β-D-GlcUAp: 4.92 (d, J = 7.0, H-1), 3.79 (s, OMe-6)

α-L-Arap: 5.27 (H-1) [1]

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

Table 1

C-3

89.1

GlcUA-1

105.7

4

39.5

6

169.9

8/14

41.0

OMe

52.0

10

36.5

Ara-1

106.6

11

52.6

   

12

57.3

   

13

87.5

   

14/8

41.7

   

17

44.1

   

20

31.5

   

28

178.5

   

References

  1. 1.
    M. Iwamoto, H. Okabe, T. Yamauchi, Chem. Pharm. Bull. 33, 1 (1985)CrossRefGoogle Scholar

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