申请人:Industrial Technology Research Institute
公开号:US20180169262A1
公开(公告)日:2018-06-21
A linker-drug represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof is provided. In formula (I), C is a conjugator, L is a linker unit, D is a toxin unit, and n is an integer ranging from 1 to 4. The structure of the conjugator is represented by formula (II). In formula (II), X is a leaving group, each of R
1
and R
2
is independently a single bond or —NH—, and Z is substituted aryl, heteroaryl, linear alkyl, cycloalkyl, heterocycloalkyl, or a combination thereof. The antibody is conjugated to the linker unit through a cysteine residue of the antibody. An antibody-drug conjugate (ADC) employing the above linker-drug is also provided.
提供由式(I)表示的连接药物或其药学上可接受的盐或溶剂。在式(I)中,C是一个结合物,L是一个连接单元,D是一个毒素单元,n是一个从1到4的整数。结合物的结构由式(II)表示。在式(II)中,X是一个离去基团,R1和R2中的每一个独立地是一个单键或—NH—,Z是取代芳基、杂环芳基、直链烷基、环烷基、杂环烷基或它们的组合。抗体通过抗体的半胱氨酸残基与连接单元结合。还提供了使用上述连接药物的抗体-药物结合物(ADC)。