Natural Compounds

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

3α-Angeloyloxy-1β,10β-epoxy-furanoeremophilane

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1121

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

Biological sources: Euryops acraeus M. D. Hend., E. pedunculatus N.E.Br. [1]

C20H26O4: 330.1831

Mp: colorless oil [1]

IR (CCl4): 1710, 1655 [1]

MS: 330.183 [M]+ (17) (calc. for C20H26O4: 330.183), 230 (24), 215 (10), 162 (80), 83 (100), 55 (92) [1]

1H NMR (270 MHz, CDCl3): 1.10 (3H, d, J = 7, H-15), 1.19 (3H, s, H-14), 1.81 (1H, m, H-4α), 1.92 (3H, d, J = 1.3, H-13), 2.10 (1H, dd, J = 14; 7, H-2α), 2.20 (1H, br d, J = 16, H-6α), 2.25 (1H, br d, J = 17, H-9α), 2.28 (1H, ddd, J = 5; 14; 11, H-2β), 2.91 (1H, br d, J = 17, H-9β), 3.11 (1H, br d, J = 16, H-6β), 3.12 (1H, d, J = 5, H-1α), 5.24 (1H, ddd, J = 7; 11; 4, H-3β), 7.07 (1H, br s, H-12); OAng: 1.88 (3H, dq, J = 1; 1, H-5′), 1.99 (3H, dq, J = 7; 1, H-4′), 6.09 (1H, qq, J = 7; 1, H-3′) [1]

References

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

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