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Design, Synthesis, and Biological Evaluation of Novel 1,3,4-Thiadiazole Derivatives as Potential Antitumor Agents against Chronic Myelogenous Leukemia: Striking Effect of Nitrothiazole Moiety.

ABSTRACT: In an attempt to develop potent antitumor agents, new 1,3,4-thiadiazole derivatives were synthesized and evaluated for their cytotoxic effects on multiple human cancer cell lines, including the K562 chronic myelogenous leukemia cell line that expresses the Bcr-Abl tyrosine kinase. N-(5-Nitrothiazol-2-yl)-2-((5-((4-(trifluoromethyl)phenyl)amino)-1,3,4-thiadiazol-2-yl)thio)acetamide (2) inhibited the Abl protein kinase with an IC50 value of 7.4 µM and showed selective activity against the Bcr-Abl positive K562 cell line. Furthermore, a Bcr-Abl-compound 2 molecular modelling simulation highlighted the anchoring role of the nitrothiazole moiety in bonding and hydrophobic interaction with the key amino acid residues. These results provide promising starting points for further development of novel kinase inhibitors.

SUBMITTER: Alt?ntop MD 

PROVIDER: S-EPMC6017545 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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Design, Synthesis, and Biological Evaluation of Novel 1,3,4-Thiadiazole Derivatives as Potential Antitumor Agents against Chronic Myelogenous Leukemia: Striking Effect of Nitrothiazole Moiety.

Altıntop Mehlika Dilek MD   Ciftci Halil Ibrahim HI   Radwan Mohamed O MO   Sever Belgin B   Kaplancıklı Zafer Asım ZA   Ali Taha F S TFS   Koga Ryoko R   Fujita Mikako M   Otsuka Masami M   Özdemir Ahmet A  

Molecules (Basel, Switzerland) 20171227 1

In an attempt to develop potent antitumor agents, new 1,3,4-thiadiazole derivatives were synthesized and evaluated for their cytotoxic effects on multiple human cancer cell lines, including the K562 chronic myelogenous leukemia cell line that expresses the Bcr-Abl tyrosine kinase. <i>N</i>-(5-Nitrothiazol-2-yl)-2-((5-((4-(trifluoromethyl)phenyl)amino)-1,3,4-thiadiazol-2-yl)thio)acetamide (<b>2</b>) inhibited the Abl protein kinase with an IC<sub>50</sub> value of 7.4 µM and showed selective acti  ...[more]

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