Sulfoxonium ylides as carbene precursors couple smoothly with thioureas in the presence of 5 mol% of rhodium(II) acetate dimmer via carbenoid insertion to afford the corresponding 2-aminothiazoles with high chemoselectivity, providing a facile and efficient approach to access a variety of 2-aminothiazole derivatives with good functional groups tolerance.
new tri- and tetra-cyclic thiosemicarbazone derivatives were prepared via the condensation of morpholine, piperazine or N-(4-methoxyphenyl)piperazine with seven methyl hydrazine-carbodithioate derivatives of 5-acetyl-2-arylamino-4-methylthiazoles under microwave irradiation. All compounds were tested for their cytotoxic activity in vitro against human gastric, lung and breast cancer cell lines. The results
4-Pyridylanilinothiazoles That Selectively Target von Hippel−Lindau Deficient Renal Cell Carcinoma Cells by Inducing Autophagic Cell Death
作者:Michael P. Hay、Sandra Turcotte、Jack U. Flanagan、Muriel Bonnet、Denise A. Chan、Patrick D. Sutphin、Phuong Nguyen、Amato J. Giaccia、William A. Denny
DOI:10.1021/jm901457w
日期:2010.1.28
recently identified a 4-pyridyl-2-anilinothiazole (PAT) with selective cytotoxicity against VHL-deficient renal cells mediated by induction of autophagy and increased acidification of autolysosomes. We report exploration of structure−activity relationships (SAR) around this PAT lead. Analogues with substituents on each of the three rings, and various linkers between rings, were synthesized and tested in
The synthesis of cyanamides and tetrazoles from isothiocyanates through tandem reaction using cobalt catalyst has been demonstrated. In the case of tetrazole preparation, the reaction involved addition/desulfurization/nucleophilic addition/electrocyclization, whereas aromatic cyanamides were constructed from isothiocyanates through addition/desulfurization. Cheap cobalt sulfate was used for the synthesis
Design and synthesis of new derivatives of 3H-quinazolin-4-one as potential anticonvulsant agents
作者:Uma Kabra、Chandrabhan Chopde、Sudhir Wadodkar
DOI:10.1002/jhet.754
日期:2011.11
As a part of systematic investigation on synthesis and biological activities, somenewderivatives of 2‐ethyl‐3‐(substituted benzothiazole‐2′‐yl)–[3H]‐quinazolin‐4‐ones 3 have been synthesized, and the structures of the compounds were confirmed by elemental analysis and spectral data. The newly synthesized derivatives are then screened for anticonvulsant activity by maximal electroshock method. J.
作为合成和生物活性系统的调查的一部分,一些新的衍生物2-乙基-3-(取代的苯并噻唑-2'-基) - [3 H ^ ] -喹唑啉-4-酮3已被合成,并且这些结构化合物的分析通过元素分析和光谱数据证实。然后通过最大电击法筛选新合成的衍生物的抗惊厥活性。J.杂环化学。(2011)。