Natural Compounds

2013 Edition
| Editors: Shakhnoza S. Azimova, Ashraf I. Saidkhodzhaev

6β-(2′,3′-Epoxy-angeloyloxy)-3β-hydroxy-furanoeremophil-1(10)-en-9-one (3β-Hydroxy-6β-(2′-methyl-2′,3′-epoxy-butyryloxy)-euryopsin-9-one)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1162

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Taxonomy: Physicochemical and Pharmacological Properties of Sesquiterpene Esters – The Bicyclic Sesquiterpene Esters – Eremophilanes – Furanoeremophilanes – Monoesters

Biological sources: Euryops sp. [1]

C20H24O6: 360.1573

Mp: 151.5°C (colorless crystals, Et2O–petrol) [1]

[α]24 (λ, nm): +8.7° (589), +9.7° (578), +11.0° (546), +36.4° (436) (c 0.39, CHCl3) [1]

IR (CCl4): 3620, 1740, 1685, 1640 [1]

MS: 360.157 [M]+ (2) (calc. for C20H24O6: 360.157), 244 (100) [1]

1H NMR (270 MHz, CDCl3, TMS): 1.02 (3H, d, J = 7, H-15), 1.26 (3H, s, H-14), 1.99 (3H, d, J = 1, H-13), 2.37 (2H, m, H-2), 4.09 (1H, m, H-3α), 6.44 (1H, s, H-6α), 6.63 (1H, dd, J = 4, H-1), 7.44 (1H, q, J = 1, H-12); OEpang: 1.46 (3H, d, J = 7, H-4′), 1.67 (3H, s, H-5′), 3.18 (1H, q, J = 7; 1.5, H-3′) [1]

References

  1. 1.
    F. Bohlmann, C. Zdero, Phytochemistry 17(7), 1135 (1978)CrossRefGoogle Scholar

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