Momordicoside G

Reference work entry

CAS Registry Number: 81371-54-2 Open image in new window

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

Biological source: Momordica charantia [1]

C37H60O8: 632.428

Mp: 183–187°C [1]

[α]D − 107.3° (c 1.00, MeOH) [1]

CD [θ]20216: −93200° (c, 0.61 × 10−4 g/ml, MeOH) [1]

1H NMR (J/Hz): 3.64 (brs, H-3), 6.20 (dd, J = 10.0, 2.0, H-6), 3.60 (d, J = 8.0, Hα-19), 3.79 (d, J = 8.0, Hβ-19), 5.60 (brs, H-23), 5.60 (H-24), 0.80, 0.90, 1.33, 1.33, 1.47 (s, CH3 × 5), 3.22 (OCH3)

β-D-Allp: 5.38 (d, J = 8.0, H-1), 3.93 (dd, J = 8.0, 3.0, H-2), 4.69 (t, J = 3.0, H-3) [1]

13C NMR (C5D5N): Aglycone: 38.9, 45.1, 45.3, 48.7, 52.1, 74.7, 79.9, 84.9, 85.7, 128.0, 129.6, 133.8, 137.3; Sugar: 63.1, 69.0, 72.3, 72.8, 75.8, 103.8 [1]

References

  1. 1.
    H. Okabe, Y. Miyahara, K. Miyahara, T. Kawasaki, Chem. Pharm. Bull. 30, 3977 (1982)CrossRefGoogle Scholar

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