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Fargoside D

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 30-nor-hederagenin

Biological source: Holboellia fargesii [1]

C41H62O14: 778.413

[α]D23 + 65.6° (c 0.5, MeOH) [1]

IR (KBr) νmax cm−1: 3418, 2936, 1739, 1689, 1443, 1383, 1134, 1057 [1]

MALDI-TOF-MSm/z: 801 [M + Na]+, 817 [M + K]+ [1]

HR-FAB-MSm/z : 777.4055 [M-H] [1]

1H NMR (500 MHz, J/Hz, C5D5N): 4.31 (dd, J = 11.9, 4.6, H-3), 1.72 (d, J = 11.0, H-5), 5.49 (brt, J = 3.4, H-12), 3.23 (dd, J = 13.7, 5.0, H-18), 3.74, 4.35 (d, J = 10.5, H2-23), 0.94, 0.92, 1.01, 1.21 (s, CH3-24, 25, 26, 27), 4.75, 4.80 (brs, H2-29)

α-L-Arap: 4.98 (d, J = 7.5, H-1), 4.60 (dd, J = 8.2, 7.5, H-2), 4.06 (H-3), 4.34 (H-4), 3.65 (brd, J = 12.1, H-5), 4.18 (dd, J = 12.1, 2.0, H-5)

β-D-GlcUAp: 5.44 (d, J = 7.8, H-1), 4.04 (dd, J = 9.2, 7.8, H-2), 4.29 (t, J = 9.2, H-3), 4.46 (t, J = 9.2, H-4), 4.58 (d, J = 9.2, H-5), 3.73 (s, OCH3) [1]

13 C NMR (125 MHz, C 5D 5N):...

References

  1. 1.
    H. Fu, K. Koike, Q. Zheng, K.-S. Mitsunaga, Z. Jia, T. Nikaido, W. Lin, D. Guo, L. Zhang, Chem. Pharm. Bull. 49(8), 999 (2001)CrossRefGoogle Scholar

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