Natural Compounds

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

8β-Acetoxy-5α,9β,10α(H)-muurola-3,6,11-triene (8β-Acetoxy-6,11-dehydroverboccidenten)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_812

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

Biological sources: Verbesina occidentalis (L.) Walter [1]

C17H26O2: 262.1933

Mp: colorless oil, not free from 12-acetoxy-verboccidenten [1]

IR (CCl4): 1740, 1240, 1615, 890 [1]

MS: 262.193 [M]+ (5) (calc. for C17H26O2: 262.193), 202 [M − AcOH]+ (76), 200 (63), 43 [MeCO]+ (100) [1]

1H NMR (270 MHz, CDCl3, TMS): 0.98 (3H, d, J = 7, H-14), 1.63 (3H, br s, H-15), 1.89 (3H, br s, H-13), 1.93 (1H, m, H-9β), 2.10 (3H, s, OAc), 3.19 (1H, br s, H-5α), 5.07 (1H, br s, H-12b), 5.13 (1H, br s, H-12a), 5.17 (1H, br d, J = 9, H-8α), 5.24 (1H, br s, H-4), 5.62 (1H, d, H-7) [1]

References

  1. 1.
    F. Bohlmann, M. Lonitz, Phytochemistry 17(3), 453 (1978)CrossRefGoogle Scholar

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