Discovery of Novel 2-Aminobenzamide Inhibitors of Heat Shock Protein 90 as Potent, Selective and Orally Active Antitumor Agents
作者:Kenneth H. Huang、James M. Veal、R. Patrick Fadden、John W. Rice、Jeron Eaves、Jon-Paul Strachan、Amy F. Barabasz、Briana E. Foley、Thomas E. Barta、Wei Ma、Melanie A. Silinski、Mei Hu、Jeffrey M. Partridge、Anisa Scott、Laura G. DuBois、Tiffany Freed、Paul M. Steed、Andy J. Ommen、Emilie D. Smith、Philip F. Hughes、Angela R. Woodward、Gunnar J. Hanson、W. Stephen McCall、Christopher J. Markworth、Lindsay Hinkley、Matthew Jenks、Lifeng Geng、Meredith Lewis、James Otto、Bert Pronk、Katleen Verleysen、Steven E. Hall
DOI:10.1021/jm900230j
日期:2009.7.23
roxycyclohexyl)amino]benzamide (SNX-2112, 9) was identified as highly selective and potent (IC50 Her2 = 11 nM, HT-29 = 3 nM); its prodrug amino-acetic acid 4-[2-carbamoyl-5-(6,6-dimethyl-4-oxo-3-trifluoromethyl-4,5,6,7-tetrahydro-indazol-1-yl)-phenylamino]-cyclohexyl ester methanesulfonate (SNX-5422, 10) was orally bioavailable and efficacious in a broad range of xenograft tumor models (e.g. 67% growth
从无偏筛选中开发了一类新型的热休克蛋白90(Hsp90)抑制剂,以鉴定多种化合物文库的蛋白靶标。这些吲哚-4-酮和吲哚-4-酮衍生的2-氨基苯甲酰胺对Hsp90具有很强的结合亲和力,优化的类似物在多种癌细胞系中均表现出纳摩尔级的抗增殖活性。用抑制剂处理后,细胞中的热休克蛋白70(Hsp70)诱导和特定的客体蛋白降解支持Hsp90抑制作为作用机理。所选成员化合物的计算化学和X射线晶体学分析清楚地定义了蛋白质与抑制剂的相互作用,并有助于类似物的设计。4- [6,6-二甲基-4-氧代-3-(三氟甲基)-4,5,6,7-四氢-1 H-吲唑-1-基] -2 - [(反式-4-羟基环己基)氨基]苯甲酰胺(SNX-2112,9)被确定为高度选择性的和有效(IC 50的Her2 = 11纳米,HT-29 = 3 nM)的; 其前药氨基乙酸4- [2-氨基甲酰基-5-(6,6-二甲基-4-氧代-3-三氟甲基-4