Natural Compounds

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

6β-Isovaleroyloxy-10αH-furanoeremophil-9-one

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1199

CAS Registry Number: 55050-52-7 Open image in new window

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

Biological sources: Senecio umbellatus L. [1]; S. praecox DC. [2]; S. suaveolens (L.) Elliott [3] S. macrotis Baker [4]; S. hypochoerideus DC. [5]; Euryops annae E. Phillips, E. abrotanifolius DC., E. pectinatus (L.) Cass. [6]

C20H28O4: 332.1988

Mp: oil [1]

[α]24 (λ, nm): −70.4° (589), −74.1° (578), −86.8° (546) (c 21.8) [2]

UV 270 [2]

IR: 1740, 1695 (α-furanketon) [1]; IR: 1750, 1730, 1655, 1700, 1545 [2]

MS: 332.197 [M]+ (calc. for C20H28O4 332.196), 247, 230, 85 [1]

1H NMR: (CCl4): 0.85 (3H, d, J = 6.5, H-15), 0.90 (3H, s, H-14), 1.83 (3H, d, J = 1, H-13), 6.25 (1H, s, H-6), 7.26 (1H, q, J = 1, H-12); OiVal: 0.86 (6H, d, H-4′, H-5′), 1.3 (1H, m, H-3′), 2.21 (2H, br s, H-2′) [1]

1H NMR (CDCl3, TMS): 0.90 (3H, d, J = 7, H-15), 0.90 (3H, s, H-14), 1.88 (3H, d, J =...

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