作者:Zrinka Rajić Džolić、Ivana Perković、Sandra Kraljević Pavelić、Mirela Sedić、Nataša Ilić、Dominique Schols、Branka Zorc
DOI:10.1007/s00044-016-1667-y
日期:2016.12
The current study is focused on a series of sorafenib analogs as potential antitumor agents. We have designed and synthesized nine novel pyrazine analogs 6a–i differing in amide and/or urea regions. Two alternative strategies for the preparation of title compounds were applied. The first strategy involved ether formation between 4-hydroxyphenyl urea 3 and 5-chloro-pyrazine-2-carboxamides 4. In the
当前的研究集中在一系列索拉非尼类似物作为潜在的抗肿瘤药。我们已经设计并合成了9种新颖的吡嗪类似物6a – i在酰胺和/或脲区域不同。应用了两种制备标题化合物的替代策略。第一个策略涉及在4-羟苯基脲3和5-氯-吡嗪-2-羧酰胺4之间形成醚。在第二种策略中,将醚官能团引入尿素部分之前的分子中,包括制备5-(4-氨基苯氧基)-N-烷基吡嗪-2-羧酰胺5和它们与4-氯-3-(氟甲基)苯基异氰酸酯的反应。在体外针对一组癌细胞系评估了标题化合物的细胞抑制活性。大多数测试化合物在低微摩尔范围内均显示出强大的抗增殖活性。5- / 4- [3-(4-氯-3-三氟甲基苯基)-脲基]-苯氧基/吡嗪-2-羧酸(4-氯-3-三氟甲基苯基)-酰胺(6g)最活跃化合物(IC 50 0.9–7.5μM),显示出与索拉非尼相当或更高的活性,但与正常人成纤维细胞的细胞毒性相似。两种化合物,即5- / 4- [3-(4-溴苯基