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Diplazioside IV

Reference work entry

CAS Registry Number: 187142-70-7 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – Hopan-28,22-olide-17β,24-dihydroxy-30-oic Acid

Biological source: Diplazium subsinuatum [1]

C47H74O20: 958.477

Mp: >300°C [1]

[α]D −20.1° (c 1.0, C5H5N) [1]

FAB-MSm/z: 957.4686 [M-H], 825 [M-H-Ara], 795 [957-Glc], 663 [825-Glc] [1]

EI-MSm/z: 502 (9, agl)+, 484 (29), 472 (57), 471 (48), 410 (16), 396 (78), 207 (100) [1]

IR (KBr) νmax cm−1: 3380, 2910, 1720, 1700, 1080, 1030 [1]

1H NMR (600 MHz, J/Hz, C5D5N): 0.88 (s, CH3-25), 1.16 (s, CH3-26), 1.21 (s, CH3-27), 1.25 (s, CH3-23), 1.98 (s, CH3-29), 3.86 (d, J = 9.6), 4.15 (d, J = 9.6, H2-24)

β-D-Glcp: 4.84 (d, J = 7.8, H-1), 4.03 (dd, J = 9.0, 7.8, H-2), 4.19 (dd, J = 9.0, 9.0, H-3), 4.05 (dd, J = 9.0, 9.0, H-4), 4.02 (H-5), 4.77 (d, J = 10.8, H-6), 4.31 (dd, J = 10.8, 5.4, H-6)

α-L-Araf: 6.33 (s, H-1), 4.98 (d, J = 1.8, H-2), 4.84 (H-3), 4.96 (ddd, J = 4.2, 4.2, 4.2,...

References

  1. 1.
    T. Nakanishi, Y. Inatomi, M. Nishi, H. Murata, A. Inada, Chem. Pharm. Bull. 45(1), 8 (1997)CrossRefGoogle Scholar

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