A unique and rapid approach toward the efficient development of novel protein tyrosine phosphatase (PTP) inhibitors based on ‘clicked’ pseudo-glycopeptides
作者:Jin-Wei Yang、Xiao-Peng He、Cui Li、Li-Xin Gao、Li Sheng、Juan Xie、Xiao-Xin Shi、Yun Tang、Jia Li、Guo-Rong Chen
DOI:10.1016/j.bmcl.2010.12.126
日期:2011.2
binding affinity of the inhibitors with the targeted PTP. Docking simulation was eventually conducted to propose plausible binding modes of this compound series with PTP1B and CDC25B. Our approach readily realized from naturally abundant raw materials (sugar and amino acid) and via facile, regioselective and expeditious synthetic method (microwave-assisted click reaction) might provide new insights toward
蛋白质酪氨酸磷酸酶(PTP)抑制剂的开发引起了人们的极大兴趣,因为许多PTP成员与主要的人类疾病(包括自身免疫性疾病,糖尿病和癌症)紧密相关。我们在这里报告了一种独特而快速的方法,用于开发基于三唑基假糖肽的新型PTP抑制剂实体。通过使用微波加速的Cu(I)催化的叠氮化物-炔烃1,3-偶极环加成反应(CuAAC或“点击反应”),一系列三唑连接的丝氨酰基,苏氨酸,苯丙氨酰基和酪氨酰基1- O-葡萄糖-或半乳糖苷仅在约30分钟内就可以高产率高效合成。连续的生物学分析鉴定出这些糖肽三唑是有利的PTP1B和CDC25B抑制剂,对TCPTP,LAR,SHP-1和SHP-2具有选择性。确定引入的氨基酸(Ser,Thr,Phe和Tyr)的结构多样性和单糖支架上的差向异构体(Glc或Gal)均会影响相应的抑制活性和选择性。此外,已证明苄基糖支架在增强抑制剂与靶向PTP的结合亲和力中起关键作用。最终进行了对接