CAS Registry Number: 163047-18-5
Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Cucurbitane Type – 22-Hydroxy-6,25-dien-fevicordin A
Biological source: Cayaponia tayuya [1]
C35H48O11: 644.319
Mp: 168–175°C [1]
[α] 26D − 90.7° (c 0.98, MeOH) [1]
UV λ MeOHmax nm (log ε): 206 (4.11), 233 (4.36), 274 (3.85), 284 (3.82), 303 (3.47), 315 (3.37) [1]
FAB-MS m/z: 643 [M-H]−, 481 [M-H-162]−, 383 [1]
HR-FAB-MS m/z: 667 [M + Na]+ [1]
1 H NMR (J/Hz): 6.53 (s, H-1), 6.88 (d, J = 10, H-6), 5.82 (dd, J = 6, 10, H-7), 2.57 (d, J = 6, H-8), 2.67, 2.87 (dd, J = 15, H2-12), 1.48 (d, J = 14), 2.08 (dd, J = 8, 14, H2-15), 4.65 (dd, J = 6, 8, H-16), 2.36 (d, J = 6, H-17), 1.05 (s, CH3-18), 1.21 (s, CH3-19), 1.21 (s, CH3-21), 4.08 (dd, J = 1, 6, H-22), 5.80 (dd, J = 6, 10, H-23), 6.36 (dd, J = 1, 6, H-24), 4.95 (s, H2-26), 1.82 (s, CH3-27), 2.23 (s, CH3-28), 0.92 (s, CH3-30)
β-D-Glcp: 4.61 (d, J = 7, H-1), 3.40–3.55 (H-2, 3, 4), 3.31 (m, H-5),...
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References
E. Himeno, T. Nagao, J. Honda, H. Okabe, N. Irino, T. Nakasumi, Chem. Pharm. Bull. 42(11), 2370 (1994)
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(2013). Cayaponoside B5 . In: Azimova, S.S. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0541-2_1368
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DOI: https://doi.org/10.1007/978-1-4614-0541-2_1368
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