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Zygophyloside G

Reference work entry

CAS Registry Number: 188554-59-8 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – Quinovic Acid

Biological source: Zygophyllum coccineum, Z. dumosum [1]

C42H66O18S: 890.396

Mp: 240–244°C [1]

[α]D25 + 20° (c 0.16, MeOH) [1]

LSI-MSm/z: 889 [M-H] (100), 845 [M-H-CO2] (10), 727 [M-H-Glc] (25), 683 [M-H-Glc-CO2] (20), 603 [M-H-Glc-CO2-SO3] (10), 97 [HSO4] (35), 80 [SO3] (30) [1]

1H NMR (500.13 MHz, J/Hz, C5D5N): 0.73 (d, J = 6.3, CH3-30), 0.80 (s, CH3-25), 0.85 (H-5, H-20), 0.95 (H-1), 1.11 (s, CH3-24), 1.14 (d, J = 6.2, CH3-29), 1.16 (s, CH3-26), 1.18 (H-6), 1.19-1.31 (H-21), 1.28 (s, CH3-23), 1.35 (H-19), 1.42 (H-6), 1.42 (H-1), 1.59 (H-7), 1.70 (H-22), 1.75 (H-7), 1.77 (H-2), 1.83 (H-22), 1.92-2.10 (H-11), 2.10 (H-2), 2.18 (H-16), 2.37 (H-15), 2.50 (H-15, H-16), 2.59 (dd, J = 5.6, 10.4, H-9), 2.65 (d, J = 11.4, H-18), 3.12 (dd, J = 3.7, 11.5, H-3), 5.95 (H-12)

β-D-Glcp: 4.82 (d, J...

References

  1. 1.
    K. Poellmann, S. Gagel, M.H.A. Elgamal, K.H. Shaker, K. Seifert, Phytochemistry 44, 485 (1997)CrossRefGoogle Scholar

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