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Mar. Drugs 2012, 10(10), 2254-2264; doi:10.3390/md10102254

Cytotoxic Activity of Semi-Synthetic Derivatives of Elatol and Isoobtusol

Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil
Department of Organic Chemistry, University of Buenos Aires, Buenos Aires, C1428EGA, Argentina
Author to whom correspondence should be addressed.
Received: 1 August 2012 / Revised: 12 September 2012 / Accepted: 1 October 2012 / Published: 18 October 2012
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In the present study, the in vitro cytotoxic effects of six semi-synthetic derivatives of elatol (1) and isoobtusol (2) were investigated. Chemical modifications were performed on the hydroxyl groups aiming to get derivatives of different polarity, namely the hemisuccinate, carbamate and sulfamate. The structural elucidation of the new derivatives was based on detailed NMR and MS spectroscopic analyses. The in vitro cytotoxicity of compounds 1 to 8 was evaluated against A459 and RD tumor cell lines with CC50 values ranging from 4.93 to 41.53 µM. These results suggest that the structural modifications performed on both compounds could be considered a good strategy to obtain more active derivatives.
Keywords: elatol; isoobtusol; sesquiterpenes; synthesis; cytotoxic activity elatol; isoobtusol; sesquiterpenes; synthesis; cytotoxic activity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Lang, K.L.; Silva, I.T.; Zimmermann, L.A.; Lhullier, C.; Mañalich Arana, M.V.; Palermo, J.A.; Falkenberg, M.; Simões, C.M.O.; Schenkel, E.P.; Durán, F.J. Cytotoxic Activity of Semi-Synthetic Derivatives of Elatol and Isoobtusol. Mar. Drugs 2012, 10, 2254-2264.

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