百济神州AR靶向PROTAC专利公开《DEGRADATION OF ANDROGEN RECEPTOR (AR) BY CONJUGATION OF AR ANTAGONISTS WITH E3 LIGASE LIGAND AND METHODS OF USE》
近日， 百济神州 公开了其双功能 AR PROTAC 降解剂专利公开，该专利（ WO2021058017 ）最早申请于2019年9月，通过招募E3泛素连接酶来降解AR。 化合物结构通式： 实施例结构摘取部分如下： 根据此前 Arvinas 报道： ARV-110 robustly degrades AR in all cell lines tested, with an observed halfmaximal degradation concentration (DC50) of ~1 nM . “ Proteolysis-targeting chimera (PROTAC) is a novel strategy for selective knockdown of target proteins by small molecules (Sakamoto KM et al., Proc Natl Acad Sci 2001, 98: 8554–9.; Sakamoto K.M. et al., Methods Enzymol. 2005; 399: 833‐847. ) . PROTAC utilizes the Ubiquitin‐protease system to target a specific protein and induce its degradation in the cell (Zhou P. et al., Mol Cell. 2000; 6 (3) : 751‐756; Neklesa T.K. et al., Pharmacol Ther. 2017; 174: 138‐144; Lu M. et al., Eur J Med Chem. 2018; 146: 251‐259; ) . The normal physiological function of the Ubiquitin-protease system is responsible for clearing denatured, mutated, or harmful proteins in cells. The normal physiological function of the Ubiquitin-protease system is responsi...