Natural Compounds

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

3β-Angeloyloxy-10β-hydroxy-furanoeremophilane

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1129

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

Biological sources: Farfugium japonicum (L.) Kitam. (= Ligularia tussilaginea Makino) [1]

C20H28O4: 332.1988

Mp: viscous oil [1]

[α]D24 −13° (c 0.88, EtOH) [1]

UV (MeOH) 218.5 (ε 19000) [1]

IR (CCl4): 3500, 1710, 1645, 1565 [1]

MS: 332 [M]+ (6), 124 (41), 109 (100), 108 (75), 83 (89), 55 (64) [1]

1H NMR (60 MHz, CCl4): 1.05 (3H, d, J = 6, H-15), 1.08 (3H, s, H-14), 1.90 (3H, H-13), 5.20 (1H, m, H-3), 6.93 (1H, m, H-12); OAng: 1.90 (3H, m, H-5′), 1.99 (3H, d, J = 7, H-4′), 5.98 (1H, q, J = 7, H-3′), [1]

1H NMR (60 MHz, C6D6): 1.03 (3H, s, H-14), 1.08 (3H, d, J = 6, H-15), 1.75 (3H, d, J = 1.5, H-13), 5.20 (1H, m, H-3), 6.99 (1H, m, H-12); OAng: 1.82 (3H, m, H-5′), 2.02 (3H, d, J = 7, H-4′), 5.75 (1H, q, J = 7, H-3′) [1]

References

  1. 1.
    H. Nagano, T. Takahashi, Bull. Chem. Soc. Jpn. 51, 3335 (1978)CrossRefGoogle Scholar

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