Synthesis and anticancer activity of 5-sulfonyl derivatives of 1,3-oxazole-4-carboxylates

Abstract

A series of new 2-aryl 5-sulfonyl-1,3-oxazole-4-carboxylates for NCI anticancer screening protocol against 60 cancer cell lines were synthesized. Screening was performed in vitro on 60 cell lines of lungs, kidneys, CNS, ovaries, prostate, and breast cancer, leukemia, and melanoma. Methyl 5-benzylsulfonyl-2-phenyl-1,3-oxazole-4-carboxylate 15 exhibited potent and broad range of cytotoxic activity against tested human cancer cells with average GI50, TGI, and LC50 values of 5.37·10-6, 1.29·10-5 and 3.6·10-5 mol/L respectively. Molecular docking was used to evaluate the possible interaction of compound 15 with tubulin as well as a complex formation with CDK2.