Diplazioside I

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – Hopan-28,22-lactone-17β,24-diol

Biological source: Diplazium subsinuatum [1]

C47H76O17: 912.508

Mp: 290–291°C (MeOH) [1]

[α]D −17.8° (c 1.00, C5H5N) [1]

HR-FAB-MSm/z: 911.5016 [M-H], 779 [M-H-Ara], 749 [M-H-Glc], 617 [M-H-Ara-Glc] [1]

EI-MSm/z: 456 (17), 438 (24), 425 (37), 207 (100), 189 (44), 176 (37), 147 (58), 109 (48) [1]

IR (KBr) νmax cm−1: 3370, 2930, 1720 (δ-lactone), 1060, 1040 [1]

1H NMR (600 MHz, J/Hz, C5D5N): 0.75 (ddd, J = 13.2, 13.2, 3.6, Hα-1), 1.60 (brd, J = 13.2, Hβ-1), 1.68 (Hα-2), 1.74 (Hβ-2), 1.00 (ddd, J = 13.2, 13.2, 3.6, Hα-3), 2.22 (brd, J = 13.2, Hβ-3), 0.86 (brd, J = 11.0, Hα-5), 1.72 (m, Hα-6), 1.47 (ddd, J = 13.2, 11.0, 3.6, Hβ-6), 1.26 (Hα-7), 1.36 (m, Hβ-7), 1.38 (Hα-9), 1.50 (m, Hα-11), 1.15 (m, Hβ-11), 2.76 (dddd, J = 3 × 13.2, 4.8, Hα-12), 1.72 (Hβ-12), 1.54 (Hβ-13), 1.26 (Hα-15), 1.26 (Hβ-15), 1.68 (m, Hα-16),...

References

  1. 1.
    T. Nakanishi, Y. Inatomi, M. Nishi, H. Murata, A. Inada, S. Aibara, Chem. Pharm. Bull. 43(12), 2256 (1995)CrossRefGoogle Scholar

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