Natural Compounds

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

3β-Angeloyloxy-6β-isobutyroyloxy-10βH-furanoeremophilan-15-oic Acid Methyl Ester

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1357

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

Biological sources: Othonna natalensis Sch. Bip. [1]; O. leptodactyla Harv. [2]; Hertia pallens Kuntze. [3]

C25H34O7: 446.2305

Mp: colorless oil [1]

IR (CCl4): 1735, 1720, 1650 [1]

MS: 446.230 [M]+ (1) (calc. for C25H34O7 446.230, 358 (12), 83 (100) [1]

1H NMR (270 MHz, CDCl3): 0.99 (3H, s, H-14), 2.25 (1H, m, H-10), 2.30 (1H, br d, J = 17, H-9b), 2.92 (1H, dd, J = 17; 8, H-9a), 2.99 (1H, d, J = 5, H-4), 5.50 (1H, ddd, J = 10; 5; 5, H-3), 6.33 (1H, s, H-6), 6.31 (1H, br s, H-2″ in OiBu), 6.41 (1H, br s, H-3′ in OAng) [1]

References

  1. 1.
    F. Bohlmann, K.-H. Knoll, Phytochemistry 17(3), 461 (1978)CrossRefGoogle Scholar
  2. 2.
    J. Jakupovic, V.P. Patnak, M. Grenz, S. Banerjee, C. Wolfrum, R.N. Baruah, F. Bohlmann, Phytochemistry 26(4), 1049 (1987)CrossRefGoogle Scholar
  3. 3.
    J. Jakupovic, F. Bohlmann, M. Grenz, Phytochemistry 28(11), 3231 (1989)CrossRefGoogle Scholar

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