Natural Compounds

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

6β-Angeloyloxy-3β-(2″-methylbutyroyloxy)-10βH-furanoeremophil-9-one

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1384

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

Biological sources: Hertia pallens Kuntze. [1]

C25H34O6: 430.2355

Mp: gum [1]

IR (CCl4): 1745, 1730, 1695 [1]

MS: 430.236 [M]+ (8) (calc. for C25H34O6: 430.236), 346 [M – O = C = C(CH3)C2H5]+ (2), 246 [346 – C4H7COOH]+ (61), 85 [C4H9CO]+ (52), 83 [C4H7CO]+ (100), 57 [85 – CO]+ (91), 55 [83 – CO]+ (78) [1]

1H NMR (400 MHz, CDCl3): 0.98 (3H, d, J = 7, H-15), 1.27 (3H, s, H-14), 1.72 (2H, m, J ≈ 3.5; ≈ 3.5, H-2), 1.85 (1H, m, J = 6, H-1b), 1.90 (1H, m, J ≈ 3.5; 7, H-4), 2.03 (3H, d, J = 1, H-13), 2.18 (1H, m, J = 4; H-1a), 2.75 (1H, br dd, J = 4; 6, H-10), 5.17 (1H, br q, J ≈ 3.5, H-3), 6.33 (1H, br s, H-6), 7.39 (1H, q, J = 1, H-12); OAng: 1.92 (3H, dq, H-5′), 1.98 (3H, dq, H-4′), 6.02 (1H, qq, H-3′) [1]

References

  1. 1.
    J. Jakupovic, F. Bohlmann, M. Grenz, Phytochemistry 28(11), 3231 (1989)CrossRefGoogle Scholar

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