Natural Compounds

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

2β-Acetoxy-3β-angeloyloxy-10βH-furanoeremophilane

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1322

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

Biological sources: Othonna barkerae Compton [1]

C22H30O5: 374.2093

Mp: oil [1]

IR: 1725, 1650, 1750, 1250 [1]

MS: 374.209 [M]+ (14) (calc. for C22H30O5 374.209), 314 [M – CH3COOH]+ (0.5), 291 [M – C4H7CO]+ (4), 274 [M – C4H7COOH]+ (1), 214 [274 – CH3COOH]+ (3), 108 (100), 83 [C4H7CO]+ (75) [1]

1H NMR: 1.02 (3H, s, H-14), 1.15 (3H, d, J = 6.5, H-15), 5.38 (1H, m, H-2), 1.90 (3H, d, J = 1, H-13), 7.04 (1H, br s, H-12); OAc: 2.07 (3H, s); OAng: 1.89 (3H, J = 1; 1, H-5′), 2.01 (3H, dq, J = 7; 1, H-4′), 6.09 (1H, qq, J = 7; 1, H-3′) [1]

References

  1. 1.
    F. Bohlmann, C. Zdero, M. Grenz, Chem. Ber. 107, 3928 (1974)CrossRefGoogle Scholar

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