Natural Compounds

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

6β-(3′-Methylvaleroyloxy)-furanoeremophil-1(10)-en-9-one (6β-(3-Methylvaleryloxy)-9-oxoeuryopsin)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1259

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

Biological sources: Senecio praecox DC. [1]

C21H28O4: 344.1988

Mp: oil [1]

[α]24 (λ, nm): −50.7° (589), −52.4° (578), −59.2° (546) (c 15.0) [1]

UV 291 [1]

IR: 1745, 1720, 1683, 1650, 1630, 1535 [1]

MS: 344.198 [M]+ (6) (calc. for C21H28O4: 344.199), 228 [M – C4H8(CH3)COOH]+ (100), 99 [C4H8(CH3)CO]+ (20) [1]

1H NMR (CDCl3, TMS): 0.96 (3H, d, J = 7, H-15), 1.07 (3H, s, H-14), 1.90 (d, H-13), 6.27 (s, H-6α), 6.83 (1H, t, J = 4, H-1β), 7.37 (1H, q, J = 1, H-12) [1]

References

  1. 1.
    F. Bohlmann, C. Zdero, Chem. Ber. 109, 819 (1976)CrossRefGoogle Scholar

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