An antibody-drug conjugate (ADC) has a structure represented by Formula (I):
[D2-L2-Cn2yG2-Ab-Sg1G1-L1-D1]x Formula (I)
or a pharmaceutically acceptable salt thereof, wherein
Ab is an antibody without glycans (i.e., the protein portion of an antibody);
G1 and G2 are glycan moieties, which may be the same or different;
Cn1 and Cn2 are conjugation moieties, which may be the same or different;
L1 and L2 are linker moieties, which may be the same or different;
D1 and D2 are drug units which may be the same or different; and
x and y are independently an integer from 0 to 8, provided that x+y≠0.
抗体-药物共轭物(ADC)的结构如式(I)所示:
[D2-
L2-Cn2yG2-Ab-Sg1G1-L1-D1]x 式 (I)
或其药学上可接受的盐,其中
Ab 是不含聚糖的
抗体(即
抗体的蛋白质部分);
G1 和 G2 是聚糖分子,可以相同或不同;
Cn1 和 Cn2 是连接分子,可能相同,也可能不同;
L1 和
L2 是连接分子,可以相同,也可以不同;
D1 和 D2 是药物单位,可以相同,也可以不同;以及
x 和 y 独立地为 0 至 8 的整数,条件是 x+y≠0 。