[EN] PROTEOLYSIS TARGETING CHIMERA (PROTAC) FOR DEGRADATION OF AURORA A-KINASE<br/>[FR] CHIMÈRE CIBLANT LA PROTÉOLYSE (PROTAC) POUR LA DÉGRADATION DE LA KINASE AURORA A
申请人:UNIV WUERZBURG J MAXIMILIANS
公开号:WO2021180787A1
公开(公告)日:2021-09-16
The invention concerns a Proteolysis Targeting Chimera (PROTAC) or a pharmaceutically acceptable salt thereof for degradation of Aurora A-kinase in cells of a mammal which PROTAC has the chemical structure AAB-L-E3B, wherein AAB is a binding unit for Aurora A-kinase, L is a linker and E3B is a binding unit for E3-ubiquitin ligase Cereblon, wherein E3B comprises the structure of thalidomide or of one of its analogs lenalidomide, pomalidomide, and apremilast, wherein L comprises or consists of an alkyl ether residue or a polyalkyl ether residue or an alkyl ether residue or a polyalkyl ether residue in which at least one C – C bond is replaced by a C = C double bond, which polyalkyl ether residue has at least two ether groups or at least two ether groups in which one O-atom is replaced by an S-atom or a part of the O-atoms is replaced by S-atoms or wherein L comprises or consists of an alkyl thioether residue or a polyalkyl thioether residue or an alkyl thioether residue or a polyalkyl thioether residue in which at least one C – C bond is replaced by a C = C double bond, which polyalkyl thioether residue has at least two thioether groups, wherein L connects AAB and E3B via a chain of atoms having five to thirteen subsequently arranged atoms, wherein atoms of functional groups connecting the linker with AAB and E3B are not considered as part of said chain.
本发明涉及一种蛋白酶解靶向嵌合物(PROTAC)或其在哺乳动物细胞中降解Aurora A激酶的药学可接受盐,该PROTAC具有化学结构AAB-L-E3B,其中AAB是与Aurora A激酶结合的单元,L是连接单元,E3B是与E3泛素连接酶Cereblon结合的单元,其中E3B包括沙利度胺的结构或其类似物来那度胺,泊马度胺和阿普利米拉斯的结构之一,其中L包括或由烷基醚残基或聚烷基醚残基或烷基醚残基或聚烷基醚残基组成,其中至少有一个C-C键被C = C双键替换,该聚烷基醚残基具有至少两个醚基团或至少两个醚基团,其中一个O原子被S原子替换或其中一部分O原子被S原子替换,或者L包括或由烷基硫醚残基或聚烷基硫醚残基或烷基硫醚残基或聚烷基硫醚残基组成,其中至少有一个C-C键被C = C双键替换,该聚烷基硫醚残基具有至少两个硫醚基团,其中L通过有五到十三个连续排列的原子的链连接AAB和E3B,其中连接连接器与AAB和E3B的功能基团的原子不被视为该链的一部分。