Tyrosine kinase inhibitors. 2. Synthesis of 2,2'-dithiobis(1H-indole-3-alkanamides) and investigation of their inhibitory activity against epidermal growth factor receptor and pp60v-src protein tyrosine kinases
作者:Andrew M. Thompson、David W. Fry、Alan J. Kraker、William A. Denny
DOI:10.1021/jm00031a009
日期:1994.3
class of tyrosine kinase inhibitors have been prepared, by reaction of 1H-indole-3-alkanamides (8) with S2Cl2, and separation of the desired disulfides from the initial mixtures of mono-, di-, and trisulfides formed. These amides were evaluated in vitro against epidermal growth factor receptor and pp60v-src protein tyrosine kinases. Inhibitory activity against EGF receptor tyrosine kinase was chain-length
通过1H-吲哚-3-烷酰胺(8)与S2Cl2的反应,并分离,制备了一系列2,2'-二硫代双(1H-吲哚-3-烷酸)类酪氨酸激酶抑制剂的酰胺类似物。从形成的一硫化物,二硫化物和三硫化物的初始混合物中分离出所需的二硫化物。这些酰胺在体外针对表皮生长因子受体和pp60v-src蛋白酪氨酸激酶进行了评估。对EGF受体酪氨酸激酶的抑制活性是链长依赖性的,丙酰胺是最有效的。似乎不需要酰胺功能中的氢键供体功能,其中最有力的是N-苄基酰胺(IC50 = 0.85 microM)。苄基环上的进一步取代没有增加效力,并且丙酰胺侧链的α-位置的取代是可接受的。水溶性α-NH2衍生物对酶显示出良好的抑制活性,是成纤维细胞中细胞生长的有效抑制剂,并选择性抑制细胞内酪氨酸磷酸化模式。通常,非受体激酶pp60v-src比EGF受体激酶对这些化合物的抑制更为敏感,但结构活性关系不那么明显。