申请人:SYNAFFIX B.V.
公开号:US20210353766A1
公开(公告)日:2021-11-18
The invention relates to a novel linker for use in bioconjugates such as antibody-drug-conjugates. The linker according to the invention is represented by formula:
wherein:
BM is a branching moiety;
E is a capping group;
SG is a sulfamide group;
b, c, d, e, g, i, k, l are independently 0 or 1;
f is an integer in the range of 1 to 10;
Sp
1
, Sp
2
, Sp
3
, Sp
4
, Sp
5
and Sp
6
are a spacer moieties;
Z
1
and Z
2
are connecting groups.
The linker according to the invention is useful in the preparation of linker-conjugates and bioconjugates, and can be used for (a) improving conjugation efficiency in the preparation of the bioconjugate, (b) reducing aggregation during the preparation of the bioconjugate and/or of the bioconjugate, (c) increasing stability of the bioconjugate, and/or (d) increasing therapeutic index of the bioconjugate.