An antibody-drug conjugate (ADC) has a structure represented by Formula (I):
[D
2
-L
2
-Cn
2
y
G
2
-Ab-Sg
1
G
1
-L
1
-D
1
]
x
Formula (I)
or a pharmaceutically acceptable salt thereof, wherein
Ab is an antibody without glycans (i.e., the protein portion of an antibody);
G
1
and G
2
are glycan moieties, which may be the same or different;
Cn
1
and Cn
2
are conjugation moieties, which may be the same or different;
L
1
and L
2
are linker moieties, which may be the same or different;
D
1
and D
2
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.
Hydrophilic linkers and ligand-drug conjugates thereof
申请人:HANGZHOU DAC BIOTECH CO., LTD.
公开号:US10456479B2
公开(公告)日:2019-10-29
Hydrophilic linkers are useful for linking drugs to cell-binding ligands in ligand-drug conjugates, such as antibody-drug conjugates. The ligand-drug conjugate includes a cell-binding ligand capable of binding to a particular cell population, and a drug connected to the ligand by a hydrophilic linker. The hydrophilic linker includes one or more hydrophilic groups that render the linker hydrophilic. The hydrophilic linker may also include functional groups at the two termini for coupling to the drug and the cell-binding ligand respectively.
NOVEL HYDROPHILIC LINKERS AND LIGAND-DRUG CONJUGATES THEREOF
申请人:HANGZHOU DAC BIOTECH CO., LTD.
公开号:US20190125894A1
公开(公告)日:2019-05-02
Hydrophilic linkers are useful for linking drugs to cell-binding ligands in ligand-drug conjugates, such as antibody-drug conjugates. The ligand-drug conjugate includes a cell-binding ligand capable of binding to a particular cell population, and a drug connected to the ligand by a hydrophilic linker. The hydrophilic linker includes one or more hydrophilic groups that render the linker hydrophilic. The hydrophilic linker may also include functional groups at the two termini for coupling to the drug and the cell-binding ligand respectively.