Anticancer profile of newly synthesized BRAF inhibitors possess 5-(pyrimidin-4-yl)imidazo[2,1-b]thiazole scaffold
作者:Mohammed S. Abdel-Maksoud、Usama M. Ammar、Chang-Hyun Oh
DOI:10.1016/j.bmc.2019.03.062
日期:2019.5
In this work, a new series of imidazo[2,1-b]thiazole was designed and synthesized. The new compounds are having 3-fluorophenyl at position 6 of imidazo[2,1-b]thiazole and pyrimidine ring at position 5. The pyrimidine ring containing either amide or sulphonamide moiety attached to a linker (ethyl or propyl) at position 2 of the pyrimidine ring. The final compounds were selected by NCI for in vitro cytotoxicity
Imidazoheterocycles undergo efficient and regioselective sulfenylation with disulfides using the iodine/hydrogen peroxide system in ethanol at 25 degrees C. This green strategy tolerates a wide range of functional groups to afford diverse sulfenylated imidazoheterocycles in high yields. Moreover, the fipronil (a pesticide) skeleton can be readily attached to imidazoheterocycles using this strategy, which is significant in drug development.