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Eryloside J

Reference work entry

CAS Registry Number: 350678-25-0 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – 14-Carboxy-24-methyllanosta-8(9),24(31)-diene

Biological source: Erylus nobilis [1]

C50H81NO16: 951.555

Mp: 193–196°C [1]

[α]D25 −16.9° (c 0.06, MeOH) [1]

FAB-MS (positive ion mode) m/z: 974.5436 [M + Na]+ [1]

IR (KBr) νmax cm−1: 3350, 2940, 1645, 1555, 1455, 1375, 1070 [1]

1H NMR (600 MHz, J/Hz, CD3OD): 4.84 (brs, H-31), 4.65 (d, J = 1.0, H-31), 3.15 (dd, J = 11.7, 4.4, H-3), 2.24 (m, H-12), 2.15 (m, H-11), 2.12 (m, H-23), 2.10 (m, H-7, 11), 2.07 (m, H-15, 16), 2.00 (m, H-7), 1.90 (m, H-2, 23), 1.76 (m, H-1), 1.74 (m, H-2), 1.69 (m, H-6, 12), 1.60 (m, H-17), 1.58 (m, H-22), 1.56 (m, H-16), 1.54 (m, H-6), 1.49 (m, H-20), 1.39 (m, H-15), 1.30 (m, H-1), 1.17 (m, H-22), 1.12 (dd, J = 12.7, 2.0, H-5), 1.07 (s, CH3-28), 1.05 (s, CH3-19, 26, 27, 32), 0.96 (d, J = 6.4, s, CH3-21), 0.90 (s, CH3-29), 0.80 (s, CH3-18)

α-L-Arap:...

References

  1. 1.
    J. Shin, H.-S. Lee, L. Woo, J.-R. Rho, Y. Seo, Ki.W. Cho, Ch.J. Sim, J. Nat. Prod. 64(6), 767 (2001)CrossRefGoogle Scholar

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