Abstract
For the evaluation of the role of substituents ofar-turmerone for its anticancer activity, ar-turmerone (1a) and its analogs like 2-methyl-6-(4′-methyphenyl)-2-octen-4-one (1b), 2-methyl-6-phenyl-2-hepten-4-one (1c), 2-methyl-6-phenyl-2-octen-4-one, (1d), and 2-methyl-6-(trans-4′-methylcyclohexyl)-2-hepten-4-one (1e) were prepared and their cytotoxic activities against L1210 cell were determined. Omission of methyl group atpara-position dose not variate the cytotoxicity of ar-turmerone. Elongation of alkyl group at 6-position decreases ED50 value. Saturation of aromatic ring of ar-turmerone markedly decreases the cytotoxicity. Therefore the smaller size of alkyl group at 6-position and aromatic ring of ar-turmerone should be essential for exhibiting its anticancer activity.
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