Synthesis and biological activity of 2-aminothiazoles as novel inhibitors of PGE2 production in cells
作者:Breland Smith、Hui-Hua Chang、Federico Medda、Vijay Gokhale、Justin Dietrich、Angela Davis、Emmanuelle J. Meuillet、Christopher Hulme
DOI:10.1016/j.bmcl.2012.03.013
日期:2012.5
This Letter presents the synthesis and biological evaluation of a collection of 2-aminothiazoles as a novel class of compounds with the capability to reduce the production of PGE(2) in HCA-7 human adenocarcinoma cells. A total of 36 analogs were synthesized and assayed for PGE(2) reduction, and those with potent cellular activity were counter screened for inhibitory activity against COX-2 in a cell free assay. In general, analogs bearing a 4-phenoxyphenyl substituent in the R-2 position were highly active in cells while maintaining negligible COX-2 inhibition. Specifically, compound 5l (R-1 = Me, R-2 = 4-OPh-Ph, R-3 = CH(OH)Me) exhibited the most potent cellular PGE(2) reducing activity of the entire series (EC50 = 90 nM) with an IC50 value for COX-2 inhibition of >5 mu M in vitro. Furthermore, the anti-tumor activity of analog 1a was analyzed in xenograft mouse models exhibiting promising anti-cancer activity. (C) 2012 Elsevier Ltd. All rights reserved.
Design, synthesis and investigation on the structure–activity relationships of N-substituted 2-aminothiazole derivatives as antitubercular agents
作者:Marco Pieroni、Baojie Wan、Sanghyun Cho、Scott G. Franzblau、Gabriele Costantino
DOI:10.1016/j.ejmech.2013.11.007
日期:2014.1
resistance, these molecules should be active also against the nonreplicating persistent form (NRP-TB) of the infection. The availability of an in-house small library of compounds prompted us to investigate their anti-TB activity. Two compounds, embodying a 2-aminothiazole scaffold, were found to possess a certain inhibitory activity toward Mycobacterium tuberculosis H37Rv, and therefore a medicinal
Several straightforward and practical processes have been established for the construction of 2-aminothiazoles, 1,3-thiazoles and 1,3-selenazoles from aryliodoazides. These strategies successfully proceed with a wide spectrum of substituted thioamides and its derivatives producing the resulting five-membered heterocycles obtained in satisfactory yields. The unique features of these protocols are operational