Natural Compounds

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

3α-Acetoxy-2β-angeloyloxy-10αH-furanoeremophilane

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1324

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

Biological sources: Othonna bulbosa L. [1]

C22H30O5: 374.2093

Mp: oil [1]

IR: 1720, 1650, 1745, 1245 [1]

MS: 374.210 [M]+ (16) (calc. for C22H30O5 374.209), 314 [M – CH3COOH]+ (15), 274 [M – C4H7COOH]+ (29), 231 [314 – C4H7CO]+ (18), 214 [314 – C4H7COOH]+ (17), 199 [214 – CH3]+ (6), 108 (40), 83 [C4H7CO]+ (100) [1]

1H NMR: 0.82 (3H, d, J = 6.5, H-15), 1.17 (3H, s, H-14), 1.88 (3H, d, J = 1, H-13), 5.08 (each 1H, m, H-2, H-3), 6.92 (1H, br s, H-12); OAc: 1.92 (3H, s); OAng: 1.82 (3H, dq, J = 1; 1, H-5′), 1.96 (3H, dq, J = 7; 1, H-4′), 5.98 (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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© Springer Science+Business Media New York 2013