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Papyrioside LE

Reference work entry

CAS Registry Number: 189307-16-2 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 11α-Hydroxy-3,21-dioxo-olean-12-en-28-oic Acid

Biological source: Tetrapanax papyriferum [1]

C48H76O18: 940.503

[α]D25−25.7° (c 1.0, MeOH) [1]

HR-FAB-MSm/z: 964.965 [M + Na]+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 1.20, 0.90, 0.98, 1.11, 1.06, 1.21, 1.09 (s, CH3-23, 24, 25, 26, 27, 29, 30), 3.61 (H-3), 2.00 (brd, J = 10.0, H-11), 5.63 (d, J = 4.0, H-12), 3.61 (H-18)

β-D-Glcp: 6.22 (d, J = 9.0, H-1), 4.13 (H-2), 4.21 (t, J = 9.0, H-3), 4.32 (H-4), 4.13 (H-5), 4.31 (H-6), 4.68 (brd, J = 10.0, H-6)

β-D-Glcp′: 4.96 (d, J = 8.0, H-1), 3.94 (t, J = 8.0, H-2), 4.11 (H-3), 4.39 (t, J = 9.0, H-4), 3.66 (brd, H-5), 4.10, 4.19 (H2-6)

α-L-Rhap: 5.84 (brs, H-1), 4.67 (H-2), 4.55 (brd, H-3), 4.30 (dd, J = 6.0, 11.0, H-4), 4.96 (H-5), 1.71 (d, J = 7.0, CH3-6) [1]

13 C NMR (500 MHz, C 5D 5N): [ 1]

Table 1

C-1

33.6

C-16

25.9

Glc-1...

References

  1. 1.
    M. Mutsuga, K. Kojima, I. Saracoglu, Y. Ogihara, Chem. Pharm. Bull. 45(3), 552 (1997)CrossRefGoogle Scholar

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