Natural Compounds

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

9α-(4′-Methylsenecioyloxy)-8α-hydroxy-11,12-epoxy-7α,10βH-eremophil-2-one

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1055

Open image in new window

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

Biological sources: Euryops algoensis DC. [1]

C21H32O5: 364.2250

IR (CCl4): 1740, 1725 [1]

MS: 364.225 [M]+ (2) (C21H32O5), 346 (2), 97 [MeSenCO]+ (100) [1]

HPLC: MeOH – H2O (1:1), Rt 16.5 min [1]

1H NMR (400 MHz, CDCl3): 0.88 (3H, d, J = 7, H-15), 1.06 (3H, s, H-14), 1.14 (1H, dd, J = 13; 13; H-6β), 1.33 (3H, s, H-13), 1.67 (1H, ddd, J = 3; 13; 13; H-7), 2.01 (1H, ddd, J = 7; 3, H-10), 2.09 (1H, dd, J = 13; 3; H-6α), 2.15 (1H, br d, J = 15, H-1α), 2.15 (1H, ddd, J = 15; 12.5; H-3β), 2.29 (1H, ddd, J = 15; 5; H-3α), 2.62 (1H, dd, J = 15; 7; H-1β), 2.64 (1H, ddq, J = 5; 12.5; 7, H-4), 2.68 (1H, d, J = 4.5, H-12b), 2.79 (1H, d, J =4.5, H-12a), 3.57 (1H, dd, J = 13; 3.5; 2, H-8), 5.42 (1H, dd, J = 3.5; 3, H-9); OMeSen: 1.07 (3H, t, H-5′), 2.15 (2H, br q, H-4′), 2.15 (3H, d, H-6′), 5.45 (1H, tq, H-2′) [1]

References

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

Copyright information

© Springer Science+Business Media New York 2013