Design, synthesis and biological evaluation of novel vicinal diaryl-substituted 1H-Pyrazole analogues of combretastatin A-4 as highly potent tubulin polymerization inhibitors
作者:Romeo Romagnoli、Paola Oliva、Maria Kimatrai Salvador、Maria Encarnacion Camacho、Chiara Padroni、Andrea Brancale、Salvatore Ferla、Ernest Hamel、Roberto Ronca、Elisabetta Grillo、Roberta Bortolozzi、Fatlum Rruga、Elena Mariotto、Giampietro Viola
DOI:10.1016/j.ejmech.2019.111577
日期:2019.11
derivatives, prepared as cis-rigidified combretastatin A-4 (CA-4) analogues, were synthesized and evaluated for their in vitro antiproliferative against six different cancer cell lines and, for selected highly active compounds, inhibitory effects on tubulin polymerization, cell cycle effects and in vivo potency. We retained the 3′,4′,5′-trimethoxyphenyl moiety as ring A throughout the present investigation
一系列3-(3',4',5'-三甲氧基苯基)-4-取代的1 H-吡唑及其相关的3-芳基-4-(3',4',5'-三甲氧基苯基)-1- H合成了作为顺式刚性康普他汀A-4(CA-4)类似物制备的对吡唑区域异构衍生物,并评估了其对六种不同癌细胞系的体外抗增殖作用,并针对某些高活性化合物对微管蛋白聚合的抑制作用进行了评估,细胞周期效应和体内效力。在整个本研究中,我们保留了3',4',5'-三甲氧基苯基部分作为环A,并通过添加吸电子(OCF 3,CF 3)或第二个芳基环上的电子释放基团(烷基和烷氧基),对应于CA-4的B环,位于吡唑核的3或4位。另外,B环被苯并[ b ]噻吩-2-基部分取代。对于许多化合物,它们的活性均大于或与CA-4相当。在两种区域异构衍生物中观察到最大活性,其特征在于在1 H的C-3和C-4位置存在4-乙氧基苯基和3',4',5'-三甲氧基苯基,反之亦然-吡唑环。数据表明,3