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Fargoside C

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]

C45H68O18: 896.440

[α]D23 + 54.0° (c 0.6, MeOH) [1]

IR (KBr) νmax cm−1: 3405, 2929, 1691, 1443, 1382, 1171, 1058 [1]

MALDI-TOF-MSm/z: 919 [M + Na]+, 935 [M + K]+ [1]

HR-FAB-MSm/z : 895.4313 [M-H] [1]

1H NMR (500 MHz, J/Hz, C5D5N): 4.19 (H-3), 1.68 (d, J = 9.6, H-5), 5.48 (brt, J = 3.2, H-12), 3.22 (dd, J = 13.1, 4.5, H-18), 3.76, 4.43 (d, J = 10.5, H-23), 1.09, 0.93, 1.00, 1.21 (s, CH3-24, 25, 26, 27), 4.74, 4.79 (brs, H2-29)

α-L-Arap: 4.96 (d, J = 7.2, H-1), 4.70 (dd, J = 7.4, 7.2, H-2), 4.12 (H-3), 4.47 (H-4), 3.52 (brd, J = 12.0, H-5), 4.12 (brd, J = 12.4, H-5)

β-D-GlcUAp: 5.38 (d, J = 7.8, H-1), 4.05 (H-2), 4.31 (t, J = 9.0, H-3), 4.53 (t, J = 9.0, H-4), 4.62 (d, J = 9.0, H-5)

α-L-Arap′: 5.32 (d, J = 7.5, H-1), 4.45 (dd, J = 8.2, 7.5, H-2), 4.06 (H-3), 4.17 (H-4), 3.47...

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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