Natural Compounds

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

6β-(4′-Hydroxyangeloyloxy)-1,10β-epoxy-furanoeremophilane (1,10β-Epoxy-6β-(γ-hydroxyangeloyloxy)furanoeremophilan)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1166

Open image in new window

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

Biological sources: Ligularia vorobierii Vorosch. [1]

C20H26O5: 346.1780

Mp: oil [1]

IR: 3620, 1715, 1650 [1]

[α]24 (λ, nm) −11° (589), −11° (578), −13° (546), −20° (436) (c 2.1) [1]

MS: 346.178 [M]+ (5) (calc. for C20H26O5: 346.178), 230 (100), 99 (20) [1]

1H NMR (270 MHz, CDCl3, TMS): 1.09 (3H, d, J = 7, H-15), 1.23 (3H, s, H-14), 1.8–2.1 (5H, m, J4 = 7, H-2, 3, 4), 1.81 (3H, d, J = 1, H-13), 2.20 (1H, d, J9α,9β = 17, H-9α), 3.13 (1H, d, J1,2β = 5.5, H-1), 3.19 (1H, J9α,9β = 17, H-9β), 6.44 (1H, br s, H-6), 7.08 (1H, br s, J = 1, H-12); OAng(OH): 1.99 (3H, td, J = 1; 1, H-5′), 4.48 (2H, br s, J = 7; 1, H-4′), 6.32 (1H, td, J = 7; 1, H-3′) [1]

References

  1. 1.
    F. Bohlmann, A. Suwita, Chem. Ber. 110, 1759 (1977)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013