Natural Compounds

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

3β-Angeloyloxy-4α,6β-dihydroxy-furanoeremophil-1(10)-ene

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1118

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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]

C20H26O5: 346.1780

IR (CCl4): 1720 [1]

MS: 228 [M – H2O – C4H7COOH]+ (70), 213 (60), 123 (60), 123 (70), 83 [C4H7CO]+ (100) [1]

TLC: Et2O – petrol (3:2), Rf 0.5 [1]

1H NMR (400 MHz, CDCl3):1.22 (3H, s, H-14), 1.26 (3H, s, H-15), 2.05 and 2.58 (2H, m, J = 5; 10; 6, H-2), 2.06 (3H, d, H-13), 3.39 and 3.01 (2H, br d, J = 16; 16, H-9), 5.17 (1H, br s, H-6), 5.33 (1H, dd, J = 10; 6, H-3), 5.44 (1H, br d, J = 5, H-1), 7.04 (1H, q, H-12); OAng: 1.95 (3H, qq, H-5′), 2.03 (3H, dq, H-4′), 6.10 (1H, qq, H-3′) [1]

References

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

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