Natural Compounds

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

3α-(4′-Angeloyloxy-hex-2′-cis-enoyloxy)-9β-hydroxy-10βH-eremophil-7(11)-en-8-one (4′-Angeloyloxy-isosenspecioson)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1014

Open image in new window

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

Biological sources: Senecio speciosus Willd. [1]

C26H38O6: 446.2668

Mp: colorless oil [1]

IR (CCl4): 3470, 1720, 1655 [1]

MS: 446.267 [M]+ (10), 346 (5), 234 (59), 216 (17), 195 (47), 113 (30), 83 (100) [1]

1H NMR (270 MHz): 0.95 (3H, s, H-14), 0.96 (3H, d, J = 6.5, H-15), 1.00 (3H, t, J = 7, H-6′), 1.5 (1H, m, H-5′), 1.82 (3H, br s, H-13), 1.94 (2H, d, J = 2, H-12), 2.93 (1H, d, J = 5, H-6α), 3.76 (1H, d, J = 2.5, OH), 3.84 (1H, dd, J = 2.5; 11.5, H-9α), 4.84 (1, ddd, J = 10; 10; 5, H-3β), 5.83 (1H, dd, J = 11; 0.5, H-2′), 6.14 (1H, dd, J = 11; 7.5, H-3′), 6.22 (2H, ddd, J = 7.5; 6.5; 6, H-4′); OAng: 1.90 (3H, dq, J = 1; 1, H-5″), 1.98 (3H, dq, J = 7; 1, H-4″), 6.07 (1H, qq, J = 7; 1, H-3″) [1]

References

  1. 1.
    F. Bohlmann, A. Suwita, C. Zdero, Phytochemistry 17(10), 1763 (1978)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013