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Molecules 2013, 18(4), 4158-4169; doi:10.3390/molecules18044158
Article

Design, Synthesis and Antitumor Activity of Novel 4-Methyl-(3'S,4'S)-cis-khellactone Derivatives

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*  and *
School of Pharmaceutical Science, Shanxi Medical University, No 56, Xinjian Nan Road, Taiyuan 030001, Shanxi, China These authors contributed equally to this work.
* Authors to whom correspondence should be addressed.
Received: 16 February 2013 / Revised: 27 March 2013 / Accepted: 2 April 2013 / Published: 8 April 2013
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Abstract

An asymmetric synthesis of a series of novel 4-methyl-(3'S,4'S)-cis-khellactone derivatives 3ao is reported for the first time. Their structures were confirmed by 1H-NMR, 13C-NMR and MS. Their cytotoxic activity was evaluated by the MTT assay against three selected human cancer cell lines: HEPG-2 (human liver carcinoma), SGC-7901 (human gastric carcinoma), LS174T (human colon carcinoma). Some compounds showed high inhibitory activity against these human cancer cell lines. Among them, compound 3a exhibited strong cytotoxicity, with IC50 values ranging from 8.51 to 29.65 μM. The results showed that 4-methyl-cis-khellactone derivatives with S,S configuration could be a potential antitumor agents.
Keywords: 4-methyl-(3'S,4'S)-cis-khellactone derivatives; asymmetric synthesis; antitumor activity 4-methyl-(3'S,4'S)-cis-khellactone derivatives; asymmetric synthesis; antitumor activity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Ren, L.; Du, X.; Hu, M.; Yan, C.; Liang, T.; Li, Q. Design, Synthesis and Antitumor Activity of Novel 4-Methyl-(3'S,4'S)-cis-khellactone Derivatives. Molecules 2013, 18, 4158-4169.

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