Abstract
A series of novel quinoline–docetaxel analogues (6a–6g, 13a–13g) were designed and synthesized by introducing bioactive quinoline scaffold to C2′-OH of docetaxel. The anticancer activities of these novel analogues were investigated against different human cancer cell lines including Hela, A549, A2780, MCF-7 and two resistant strains A2780-MDR and MCF-7-MDR. The data showed these analogues possessed similar to better cytotoxicity than docetaxel. Compound 6c was found to be the most potent one, and its IC50 value against MCF-7-MDR was 8.8nM (IC50 of docetaxel was 180nM). The work indicated that the introduction of quinolyl group in docetaxel could enhance cytotoxicity and reduce drug-resistance.
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