Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – Hopan-28,22-lactone-17β,24-diol
Biological source: Diplazium subsinuatum [1]
C43H68O14: 808.460
Mp: 278–280°C (MeOH) [1]
[α]D −4.8° (c 1.0, C5H5N) [1]
FAB-MS m/z: 807.4573 (M-H)−, 675 [M-H-Ara]− [1]
EI-MS m/z: 472 (10, Agl)+, 454 (19), 441 (21), 410 (16), 385 (10), 207 (100), 189 (77), 109 (64) [1]
IR (KBr) νmax cm−1: 3380, 2910, 1720, 1070, 1040 [1]
1 H NMR (600 MHz, J/Hz, C5D5N): 0.88 (s, CH3-25), 1.17 (s, CH3-26), 1.18 (s, CH3-27), 1.21 (s, CH3-23), 1.26 (s, CH3-30), 1.50 (s, CH3-29), 3.88 (d, J = 9.5), 4.07 (d, J = 9.5, H2-24)
β-D-Glcp: 4.88 (d, J = 7.8, H-1), 4.15 (dd, J = 9.0, 7.8, H-2), 4.25 (dd, J = 9.0, 9.0, H-3), 4.00 (dd, J = 9.0, 9.0, H-4), 3.96 (ddd, J = 9.0, 5.5, 2.5, H-5), 4.89 (dd, J = 12.0, 5.5, H-6), 4.77 (dd, J = 12.0, 5.5, H-6), 2.00 (s, Ac- at C-6)
α-L-Araf: 6.41 (s, H-1), 5.06 (brs, H-2), 4.90 (H-3), 5.00 (ddd, J = 4.2, 4.2, 4.2, H-4), 4.36 (dd, J = 11.5,...
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References
T. Nakanishi, Y. Inatomi, M. Nishi, H. Murata, A. Inada, Chem. Pharm. Bull. 45(1), 8 (1997)
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(2013). 6′-O-Acetyl Glycoside B. In: Azimova, S.S. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0541-2_1451
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