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Brevicuspisaponin 2

Reference work entry

CAS Registry Number: 287716-32-9 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – 19α,23,24-Trihydroxy-ursolic Acid

Biological source: Ilex brevicuspis [1]

C35H56O10: 636.387

Mp: 203–204° [1]

[α]58916 + 29.0°; [α]57816 + 29.0°; [α]54616 + 34.0°; [α]43616 + 57.0° (c 0.64, MeOH) [1]

IR (KBr) νmax cm−1: 3550–3050, 2924–2854, 1718, 1684, 1454, 1377, 1260–1215, 1140 [1]

FAB-MS (positive-ion mode) m/z: 659.3 [M + Na]+, 637 [M + H]+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 1.03, 1.59 (H2-1), 2.14, 2.31 (H2-2), 4.47 (dd, J = 13.0, 6.0, H-3), 1.88 (H-5), 1.51, 1.90 (t, J = 13.0, H2-6), 1.37, 1.73 (dt, J = 10.0, 4.0, H2-7), 1.88 (H-9), 1.97, 2.05 (H2-11), 5.52 (s, H-12), 1.22, 2.24 (H2-15), 2.05, 3.17 (dt, J = 13.0, 4.0, H2-16), 3.26 (s, H-18), 2.00 (H-20), 1.27, 2.69 (tt, J = 10.0, 2.0, H2-21), 1.94, 2.24 (H2-22), 4.43 (d, J = 13.0), 4.90 (d, J = 13.0, H2-23), 3.89 (d, J = 13.0) 4.59 (d, J = 13.0, H2-...

References

  1. 1.
    A.T.C. Taketa, T. Schmittmann-Schlager, D. Guillaume, G. Gosmann, E.P. Schenkel, Phytochemistry 53, 901 (2000)CrossRefGoogle Scholar

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