Identification of Tricyclic Analogs Related to Ellagic Acid as Potent/Selective Tyrosine Protein Kinase Inhibitors
作者:Robert L. Dow、Thomas T. Chou、Bruce M. Bechle、Colin Goddard、Eric R. Larson
DOI:10.1021/jm00040a015
日期:1994.7
inhibitor of the tyrosine-specific protein kinase pp60src. This report details efforts directed toward the identification of tricyclic structures related to ellagic acid, with enhanced specificity for inhibition of pp60src over other protein kinases. Phenanthridinone and carbazole core structures were selected for investigation, since N-functionalization allows for the synthesis of numerous analogs which can
植物来源的天然产物鞣花酸(1)最近被鉴定为酪氨酸特异性蛋白激酶pp60src的有效抑制剂,尽管非选择性。该报告详细介绍了旨在鉴定与鞣花酸有关的三环结构的努力,与其他蛋白激酶相比,其对pp60src的抑制作用具有更高的特异性。选择菲蒽醌和咔唑核心结构用于研究,因为N-官能化允许合成许多类似物,这些类似物可用于探测酶-抑制剂的相互作用。通过形成联芳基键的一般顺序,然后环化形成所需的三环系统,来制备这些环系统。N-烷基化,-酰化,或-磺酰化和用三溴化硼脱保护得到目标四酚菲啶酮5和咔唑9。这两个系列的几种类似物均具有与1相当的潜能,并且相对于蛋白激酶A(PKA),对pp60src的抑制作用表现出显着增强的选择性,丝氨酸/苏氨酸蛋白激酶。基于咔唑的类似物9j,m,p是pp60src的亚微摩尔抑制剂,其靶酪氨酸激酶的效能与鞣花酸(1)相当,但选择性却比PKA高2个数量级。如鞣花酸所见,基于菲啶酮系列的