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Eur J Med Chem. 2010 Dec;45(12):6045-51. doi: 10.1016/j.ejmech.2010.10.003. Epub 2010 Oct 23.

Synthesis of novel α-santonin derivatives as potential cytotoxic agents.

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  • 1Department of Chemistry, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N, CEP 36570-000, Viçosa, MG, Brazil.


Ten novel α-santonin derivatives have been synthesized as cytotoxic agents. The in vitro antitumor activity of these compounds has been evaluated against cancer cells lines. Structure-activity relationships indicate that α-methylene-γ-lactone and endoperoxide functionalities play important roles in conferring cytotoxicity. The compounds 2-4, possessing the α-methylene-γ-lactone group showed IC50 values between 5.70 and 16.40 μM. Mixture of isomers 5 and 6, with the α-methylene-γ-lactone and endoperoxide functionalities, displayed the greatest activity, with IC50 values between 1.45 and 4.35 μM. The biological assays conducted with normal cells revealed that the compounds 2, 5 and 6 are selective against cancer cells lines tested. Bioactive lactones described herein and in our previous report did not cause disruption of the cell membrane in mouse erythrocytes.

Copyright © 2010 Elsevier Masson SAS. All rights reserved.

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