Natural Compounds

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

(+)-3α-Acetoxy-2α-[3-(4-hydroxy-3-methoxyphenyl)-propanoyloxy]-bicyclogermacra-E1(10),4(15)-dien-5-ol

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_801

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Taxonomy: Physicochemical and Pharmacological Properties of Sesquiterpene Esters – The Bicyclic Sesquiterpene Esters – Bicyclogermacranes – Diester

Biological sources: Plagiochila ericicola Steph. [1]

C27H36O7: 472.2461

[α]D +24.8° (c 0.3, CHCl3) [1]

EI-MS: 472 (34), 470 (29), 455 (24), 412 (8), 395 (7), 293 (12), 277 (17), 259 (88), 233 (21), 217 (47), 199 (65), 195 (62), 179 (62), 137 (100), 123 (32), 95 (30) [1]

1H NMR (CDCl3): 0.51 (1H, m, H-7), 0.78 (1H, dd, J = 9.1, J = 8.7, H-6), 1.02 (3H, s, H-12), 1.06 (3H, s, H-13), 1.24 (1H, m, H-8α), 1.71 (1H, m, H-9β), 1.77 (3H, s, H-14), 2.02 (1H, m, H-8β), 2.06 (3H, s, OAc), 2.47 (1H, m, H-9α), 4.12 (1H, d, J = 9.1, H-5), 5.34 (1H, br d, J = 10.4, H-1), 5.52 (1H, s, H-15a), 5.55 (1H, dd, J = 10.4, J = 3.5, H-2), 5.61 (1H, s, H-15b), 5.75 (1H, d, J = 3.5, H-3); acyl group: 2.56 (2H, t, J = 7.8, H-8′), 2.83 (2H, t, J = 7.8, H-7′), 3.84 (3H, s, OCH3), 6.65 (1H, dd, J = 8.0; 1.8, H-6′), 6.66 (1H, d, J = 1.8, H-2′),...

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References

  1. 1.
    S. Valcic, J. Zapp, H. Becker, Phytochemistry 44(1), 89 (1997)CrossRefGoogle Scholar

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