Natural Compounds

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

6β-Isobutyroyloxy-4(15),1(10)-diepoxy-furanoeremophilane

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1179

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

Biological sources: Euryops jacksonii S. Moore [1]

C19H24O5: 332.1624

IR (CCl4): 1740 [1]

MS: 332.163 [M]+ (4), 188 (50), 122 (100) [1]

TLC: Et2O – petrol (3:7), Rf 0.5 [1]

1H NMR (400 MHz, CDCl3): 1.04 (3H, s, H-14), 1.88 (3H, d, H-13), 2.00 and 2.53 (2H, m, J = 4, H-2), 2.17 and 1.27 (2H, m, J = 2, H-3), 2.32 (1H, d, J = 1.5; 16, H-9a), 2.34 (1H, d, J = 4.5, H-15a), 2.69 (1H, dd, J = 2; 4.5, H-15b), 3.22 (1H, br d, J = 2.5; 1.5; 16, H-9b), 31.4 (1H, d, J = 4, H-1), 6.79 (1H, dd, J = 2.5; 1.5, H-6), 7.10 (1H, q, H-12); OiBu: 1.23 (3H, d), 1.27 (3H, d), 2.61 (1H, qq, H-2′) [1]

References

  1. 1.
    P. Gonser, J. Jakupovic, G.M. Mungali, Phytochemistry 30(3), 899 (1991)CrossRefGoogle Scholar

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