Natural Compounds

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

6β-Acetoxy-3β-(2′-methylacryloyloxy)-10βH-furanoeremophilane

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1350

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

Biological sources: Othonna lobata Schltr. [1]

C21H28O5: 360.1938

Mp: colorless oil [1]

[α]24 (λ, nm): −25.2° (589), −26.5° (578), – 30.8° (546), −55.4° (436) (c 2.0) [1]

IR (CCl4): 1735; 1715, 1640 [1]

MS: 360.194 [M]+ (3%) (calc. for C21H28O5 360.194), 300 (12), 214 (8), 124 (100), 69 (45) [1]

1H NMR (270 MHz, CDCl3): 0.99 (1H, d, J = 8, H-15a), 1.03 (3H, s, H-14), 2.18 (2H, m, H-4, H-10), 2.34 (1H, d, J = 17, H-9b), 2.84 (1H, dd, J = 17; 8, H-9a), 3.72 (1H, dd, J = 12; 8, H-15b), 5.36 (1H, ddd, J = 10; 5; 5, H-3), 6.35 (1H, br s, H-6) [1]

References

  1. 1.
    F. Bohlmann, K.-H. Knoll, Phytochemistry 17(3), 461 (1978)CrossRefGoogle Scholar

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