Taxonomy: Physicochemical and Pharmacological Properties of Sesquiterpene Esters – The Bicyclic Sesquiterpene Esters – Eremophilanes – Furanoeremophilanes – Monoesters
Biological sources: Senecio flavus (Decne) Schultz Bip. [1]
C20H28O3: 316.2038
Mp: colorless oil [1]
[α]D +45.9° (c 1, CHCl3) [1]
IR: 2940, 2900, 1710, 1640, 1440, 1380, 1350, 1230, 1150, 1090, 1080, 990, 850, 780, 730 [1]
EI-MS: 316 [M]+ (31), 215 (25), 214 (90), 199 (100), 185 (35), 172 (14), 171 (21), 159 (42), 146 (97), 145 (26), 128 (17), 118 (51), 108 (61), 105 (13), 91 (28), 85 (16), 79 (22), 57 (59), 43 (45), 41 (49) [1]
1 H NMR (300 MHz, CDCl3): 1.02 (3H, d, J = 7.0, H-15), 1.06 (3H, s, H-14), 1.89 (3H, d, J = 1.1, H-13), 1.96 (1H, m, H-4), 2.24 (2H, m, H-2), 2.28 (1H, d, J = 14.0, H-6a), 2.53 (1H, d, J = 14, H-6b), 3.11 (1H, d, J = 17.2, H-9), 3.35 (1H, br d, J = 17.2, H-9), 5.15 and 5.21 (1H, ddd, H-3), 5.48 (1H, br s, H-1), 7.04 (1H, br s, H-12); OMeBu: 0.96 (3H, t, H-4′), 1.22 (3H, d, H-5′), 1.81 (2H, ddq,...
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References
P. Torres, J. Ayala, C. Grande, J. Anaya, M. Grande, Phytochemistry 52(8), 1507 (1999)
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(2013). 3β-(2′-Methylbutyroyloxy)-furanoeremophil-1(10)-ene (3β-Methylbutyryloxyeuryopsin). In: Azimova, S.S., Saidkhodzhaev, A.I. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0539-9_1235
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