Discovery of GS-9973, a Selective and Orally Efficacious Inhibitor of Spleen Tyrosine Kinase
作者:Kevin S. Currie、Jeffrey E. Kropf、Tony Lee、Peter Blomgren、Jianjun Xu、Zhongdong Zhao、Steve Gallion、J. Andrew Whitney、Deborah Maclin、Eric B. Lansdon、Patricia Maciejewski、Ann Marie Rossi、Hong Rong、Jennifer Macaluso、James Barbosa、Julie A. Di Paolo、Scott A. Mitchell
DOI:10.1021/jm500228a
日期:2014.5.8
expected that a more selective Syk inhibitor would provide a greater therapeutic window. Herein we report the discovery and optimization of a novel series of imidazo[1,2-a]pyrazine Syk inhibitors. This work culminated in the identification of GS-9973, 68, a highly selective and orally efficacious Syk inhibitor which is currently undergoing clinical evaluation for autoimmune and oncology indications.
脾酪氨酸激酶(Syk)在自身免疫,炎症和肿瘤疾病适应症中是有吸引力的药物靶标。最先进的Syk抑制剂,R406,1(或它的前药形式fostamatinib,2),已在多个治疗适应症中显示出功效,但其临床进展已经由已被归因,至少部分剂量限制性不利影响的阻碍,到的脱靶活性1。预期选择性更高的Syk抑制剂将提供更大的治疗窗口。在本文中,我们报告了一系列新型咪唑并[1,2- a ]吡嗪Syk抑制剂的发现和优化。这项工作在GS-9973,鉴定高潮68是一种高度选择性和口服有效的Syk抑制剂,目前正在针对自身免疫和肿瘤学适应症进行临床评估。