Natural Compounds

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

6β-Acetoxy-furanoeremophil-1(10)-en-9-one (Decompostin)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1103

CAS Registry Number: 24405-79-6 Open image in new window

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

Biological sources: Cacalia decomposita A. Gray [1, 2]; Cacalia delphiniifolia Siebold et Zucc. (Japanese name Momijigasa) [3]; Euryops pedunculatus [4]; E. brevipapposus M.D. Hend. [5]; E. othonnoides (DC.) B. Nord. [6]; Psacalium radulifolium (H.B.K.) H. Rob. et Brettell [7]; P. beamanii H. Rob. [8]; P. sinuatum(Cerv.) H. Rob. & Bretell [9]

C17H20O4: 288.1362

Mp: 183–184°C (acetone–hexane) [1]; Mp: 184–185°C [7 ]

[α]D20 +60° (CHCl3) [1]

UV (95% EtOH): 254 (ε 4600), 302 (ε 16200) [1]; UV 302 (4.21) [2]

IR: 1740, 1670, 1620, 1600, 1540 [1]

ORD: [θ]280 −22°⋅ 10−3; [θ]249 0°; [θ]225 27.2° ⋅ 10−3 [2]

1H NMR: 0.97 (3H, d, H-15), 1.08 (3H, s, H-14), 1.95 (3H, d, H-13), 2.20 (3H, s, OAc), 6.32 (1H, s, H-6), 7.00 (1H, t, H-1), 7.43 (1H, q, H-12) [1]

1H NMR (100 MHz, CDCl3...

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