Synthesis and antiproliferative evaluation of 5-oxo and 5-thio derivatives of 1,4-diaryl tetrazoles
作者:Aditya S. Gundugola、Kusum Lata Chandra、Elisabeth M. Perchellet、Andrew M. Waters、Jean-Pierre H. Perchellet、Sundeep Rayat
DOI:10.1016/j.bmcl.2010.05.012
日期:2010.7
by copper mediated N-arylation of 1-phenyl-1H-tetrazol-5(4H)-one with aryl boronic acids, o-R1C6H4B(OH)2 where R1 = H, OMe, Cl, CF3, Br, CCH. The 1,4-diaryl tetrazol-5-ones substituted with OMe, Cl, CF3, Br underwent thionation with Lawesson’s reagent to yield the corresponding 5-thio derivatives. The 1-(2-bromophenyl)-4-phenyl-1H-tetrazole-5(4H)-thione so obtained was subjected to lithiation/protonation
通过铜介导的1-苯基-1 H-四唑-5(4 H)-one与芳基硼酸o -R 1 C 6 H进行N-芳基化反应,合成了一系列1,4-二芳基四唑-5-酮4 B(OH)2,其中R 1 = H,OMe,Cl,CF 3,Br,C CH。用Lawesson试剂将被OMe,Cl,CF 3和Br取代的1,4-二芳基四唑-5-酮进行硫磺化反应,得到相应的5-硫代衍生物。将如此获得的1-(2-溴苯基)-4-苯基-1 H-四唑-5(4 H)-硫酮进行锂化/质子化和Sonogashira偶联以产生1,4-二苯基-1H-四唑-5(4 H)-硫酮和1-(2-乙炔基苯基)-4-苯基四唑-5-硫酮。发现标题化合物对强路易斯酸条件稳定。发现这些新型化合物中的三种在体外培养的几天中可抑制L1210白血病细胞增殖和SK-BR-3乳腺癌细胞生长。较短的四唑衍生物处理还降低了SK-BR-3细胞中细胞增殖的Ki-67标志物的表达以及L1210细胞中DNA合成的速率。