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Compound 7 from Fagonia arabica

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – 27-Hydroxy-ursolic Acid

Biological source: Fagonia arabica [1]

C52H84O22: 1060.545

[α]D25 + 6.3° (c 0.4, MeOH) [1]

FAB-MSm/z: 1083 [M + Na]+, 921, 796, 664, 620, 532, 488, 487, 308 [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.83, 1.09, 1.17, 1.21 (s, CH3 × 4), 0.92, 1.05 (d, J = 6.0, CH3 × 2), 2.64 (d, J = 11.0, H-18), 3.16 (dd, J = 10.0, 4.0, H-3), 5.44 (t, J = 3.0, H-12)

α-L-Arap: 4.70 (d, J = 7.1, H-1), 4.64 (dd, J = 9.0, 7.0, H-2), 4.27 (H-3), 4.48 (m, H-4), 3.66 (d, J = 11.2, H-5), 4.16 (H-5)

β-D-Glcp: 5.26 (d, J = 7.8, H-1), 3.98 (t, J = 8.0, H-2), 4.08 (t, J = 8.0, H-3), 4.30 (H-4), 3.91 (m, H-5), 4.24, 4.44 (H2-6)

β-D-Xylp: 5.37 (d, J = 7.5, H-1), 4.0 (t, J = 8.0, H-2), 4.08 (t, J = 8.0, H-3), 4.2 (H-4), 3.44 (t, J = 9.5, H-5)

β-D-Glcp′: 6.30 (d, J = 8.0, H-1), 4.18 (t, J = 8.0, H-2), 4.26 (H-3), 4.30 (H-4), 4.01 (m, H-5), 4.38 (dd, J =...

References

  1. 1.
    T. Miyase, F.R. Melek, O.D. El-Gindi, S.M. Abdel-Khalik, M.R. El-Gindi, M.Y. Haggag, S.H. Hilal, Phytochemistry 41, 1175 (1996)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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