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]
1 H 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′), 6.80 (1H, d, J = 8.0,...
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References
S. Valcic, J. Zapp, H. Becker, Phytochemistry 44(1), 89 (1997)
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(2013). (+)-3α-Acetoxy-2α-[3-(4-hydroxy-3-methoxyphenyl)-propanoyloxy]-bicyclogermacra-E1(10),4(15)-dien-5-ol. In: Azimova, S.S., Saidkhodzhaev, A.I. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0539-9_801
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