Antibody-drug conjugate produced by binding through linker having hydrophilic structure
申请人:DAIICHI SANKYO COMPANY, LIMITED
公开号:US10729782B2
公开(公告)日:2020-08-04
As an antitumor drug which is excellent in terms of antitumor effect and safety, there is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula (I) is conjugated to an antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-Lb-Lc- or -L1-L2-LP- wherein the antibody is connected to the terminal of L1, the antitumor compound is connected to the terminal of Lc or LP, and any one or two or more of linkers of L1, L2, and LP has a hydrophilic structure.
作为一种抗肿瘤效果和安全性俱佳的抗肿瘤药物,本发明提供了一种抗体-药物共轭物,其中下式(I)表示的抗肿瘤化合物通过具有下式表示的结构的连接体与抗体共轭:-L1-L2-LP-NH-(CH2)n1-La-Lb-Lc-或-L1-L2-LP-,其中抗体连接到 L1 的末端,抗肿瘤化合物连接到 Lc 或 LP 的末端,并且 L1、L2 和 LP 中的任意一个或两个或多个连接体具有亲水结构。