Natural Compounds

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

3β-Acetoxy-6β-(2′,3′-epoxy-angeloyloxy)-10αH-furanoeremophil-9-one

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1328

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

Biological sources: Euryops oligoglossus DC. ssp. oligoglossus [1]

C23H28O7: 404.1835

Mp: colorless viscous oil [1]

[α]24 (λ, nm): −10.2° (589), −11.3° (578), −14.4° (546), −47.2° (436) (c 1.27, CHCl3) [1]

IR (CCl4): 1747, 1700, 1540, 1245 [1]

MS: 404.183 [M]+ (6) (calc. for C23H28O7: 404.183), 344 (7), 288 (14), 43 (100) [1]

1H NMR (270 MHz, CDCl3): 0.98 (3H, s, H-15), 1.17 (3H, s, H-14), 1.95 (3H, d, J = 1.3, H-13), 2.00 (1H, m, H-4α), 2.08 (3H, s, OAc), 2.45 (1H, dd, J = 16; 5, H-10α), 4.96 (1H, ddd, J = 5, H-3α), 6.35 (1H, s, H-6α), 7.40 (1H, q, J = 1.3, H-12); OEpang: 1.48 (3H, d, H-4′), 1.62 (3H, s, H-5′), 3.17 (1H, q, H-3′) [1]

References

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

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