Natural Compounds

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

6β-Angeloyloxy-10βH-furanoeremophil-15-oic Acid Methyl Ester

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1138

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

Biological sources: Ligularia macrophylla DC. [1]

C21H28O5: 360.1938

Mp: colorless oil [1]

IR (CCl4): 1730, 1710, 1650 [1]

MS: 360.194 [M]+ (3) (C21H28O5: 360.194), 260 (98), 323 (25), 229 (9), 200 (44), 185 (45), 83 (100) [1]

1H NMR (270 MHz, CDCl3): 1.08 (3H, br s, H-14), 1.87 (3H, br s, H-13), 2.46 (1H, m, H-10β), 2.46 (1H, m, H-4α), 2.55 (1H, m, H-9β), 2.85 (1H, m, H-9α), 3.68 (3H, s, OCH3), 6.26 (1H, m, H-6β), 7.06 (1H, br s, H-12); OAng: 1.91 (3H, br s, H-5′), 2.00 (3H, br d, J = 7, H-4′), 6.11 (1H, br q, J = 7; 1.5, H-3′) [1]

1H NMR (270 MHz, C6D6): 1.19 (3H, s, H-14), 1.97 (3H, d, J = 1.3, H-13), 2.25 (1H, br dd, J = 17; 5, H-9α), 2.53 (1H, m, H-10β), 2.53 (1H, m, H-4α), 2.69 (1H, br dd, J = 17; 7, H-9β), 3.39 (3H, s, OCH3), 6.47 (1H, br s, H-6β), 6.96 (1H, br s, H-12); OAng: 1.85 (3H,...

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References

  1. 1.
    F. Bohlmann, M. Grenz, Phytochemistry 18(3), 491 (1979)CrossRefGoogle Scholar

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