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Compound 3 from Picrorhiza kurrooa

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – 2β,3β,16α,20,25-Pentahydroxy-9-methyl-19-norlanosta-5,23-diene-11,22-dione

Biological source: Picrorhiza kurrooa [1]

C36H56O12: 680.377

Mp: 166–168°C [1]

UV λmax nm: 200, 230 [1]

FAB-MSm/z: 687 [M + Li]+, 679 [M-H] [1]

1H NMR (300 MHz, J/Hz, CD3OD): 1.73 (ddd, J = 12.1, H-1), 4.20 (ddd, J = 12.1, 4.6, 2.0, H-2), 3.67 (d, J = 2.0, H-3), 5.75 (brd, J = 5.4, H-6), 2.5 (m, H-7), 2.05 (dd, J = 20.0, 6.0, H-7), 2.02 (d, J = 7.6, H-8), 3.40 (d, H-12), 2.63 (d, J = 14.5, H-12), 1.91 (dd, J = 12.1, 8.3, H-15), 1.48 (d, J = 12.1, H-15), 4.55 (brt, J = 7.4, H-16), 2.67 (d, J = 7.4, H-17), 7.05 (d, J = 15.6, H-23), 6.90 (d, J = 15.6, H-24), 1.47 (s, CH3-26), 1.40 (s, CH3-27), 1.40, 1.39, 1.30, 1.19, 1.13, 0.98 (s, CH3 × 6); β-D-Glcp: 4.47 (d, J = 7.6, H-1), 3.96 (dd, J = 1.8, 11.4, H-6), 3.74 (dd, J = 5.6, 11.4, H-6) [1]

13 C NMR (75.5 MHz, CD 3OD): [ 1]

Table 1

C-1

References

  1. 1.
    H. Stuppner, H. Kählig, O. Seligmann, H. Wagner, Phytochemistry 29, 1633 (1990)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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