The present application provides bifunctional compounds of Formula (la) or (lb): or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, which act as protein degradation inducing moieties for cyclin-dependent kinase 8 (CDK8). The present application also relates to methods for the targeted degradation of CDK8 through the use of the bifunctional compounds that link a ubiquitin ligase-bindmg moiety to a ligand that is capable of binding to CDK8 which can be utilized in the treatment of disorders modulated by CDK8.
本申请提供了一种分子式为(la)或(lb)的双功能化合物:或其药学上可接受的盐、
水合物、溶剂物、前药、立体异构体或互变异构体,该化合物作为蛋白质降解诱导基团,可用于细胞周期依赖性激酶8(CDK8)的降解。本申请还涉及一种通过使用将泛素连接酶结合基团与能够结合CDK8的
配体相连的双功能化合物来靶向降解CDK8的方法,可用于治疗由CDK8调节的疾病。