Natural Compounds

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

3β-Acetoxy-6β-angeloyloxy-furanoeremophil-1(10)-ene (3β-Acetoxy-6β-angeloyloxy-euryopsine)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1326

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

Biological sources: Euryops empetrifolius DC [1], E. sulcatus (Thunb.) Harv.[1], E. pedunculatus N.E.Br. [1]

C22H28O5: 372.1937

Mp: colorless oil [1]

IR (CCl4): 1735, 1720, 1650, 1565, 1250 [1]

MS: 372.194 [M]+ (0.6) (calc. for C22H28O5: 372.194), 330 (0.8), 272 (15), 230 (21), 212 (19), 197 (12), 83 (100) [1]

1H NMR (270 MHz, CDCl3): 0.94 (3H, d, J = 7, H-15), 1.11 (3H, s, H-14), 1.80 (3H, d, J = 1, H-13), 2.04 (3H, s, OAc), 3.07 (1H, br d, J = 17, H-9b), 3.43 (1H, br d, J = 17, H-9a), 5.19 (1H, ddd, J = 7; 3.5; 7, H-3), 5.55 (1H, br s, H-1), 6.27 (1H, br s, H-6α), 7.02 (1H, br s, H-12); OAng: 1.94 (3H, dq, J = 1.5; 1.5, H-5′), 2.02 (3H, dq, J = 7; 1.5, H-4′), 6.12 (1H, qq, 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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