Natural Compounds

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

3α-(2′,3′-Epoxy-angeloyloxy)-eremophila-9(10),7(11)-dien-8-one (2′,3′-Epoxy-2′,3′-dihydropetasin)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1035

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

Biological sources: Senecio polyodon DC. [1]; S. speciosus Willd. [2]

C20H28O4: 332.1988

Mp: colorless oil [1]

IR (CCl4): 1755, 1670, 1620 [1]

MS: 332.199 [M]+ (92), 216 (49), 201 (62), 161 (100) [1]

1H NMR (270 MHz, CDCl3): 4.91 (1H, ddd, J = 11; 11; 5, H-3α); OEpang: 1.33 (3H, d, J = 5, H-4′), 1.59 (3H, s, H-5′), 3.06 (1H, q, J = 5, H-3′) [1]

References

  1. 1.
    F. Bohlmann, A. Suwita, C. Zdero, Phytochemistry 17(10), 1763 (1978)CrossRefGoogle Scholar
  2. 2.
    F. Bohlmann, C. Zdero, D. Berger, A. Suwita, P. Mahanta, C. Jeffrey, Phytochemistry 18(1), 79 (1979)CrossRefGoogle Scholar

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