Macrocyclic bifunctional chelants, complexes thereof and their antibody conjugates
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0353450A1
公开(公告)日:1990-02-07
A group of functionalized polyaminocarboxylate chelants that form complexes with rare earth-type metal ions are disclosed. The complexes can be covalently attached to an antibody or antibody fragment and used for therapeutic and/or diagnostic purposes.
Unexpected selectivity in the alkylation of polyazamacrocycles
作者:William J. Kruper、Philip R. Rudolf、Charles A. Langhoff
DOI:10.1021/jo00067a018
日期:1993.7
Reaction of equivalent amounts of free base polyazamacrocycles with an alkyl halide in a nonpolar, aprotic solvent affords the mono-N-alkylation product as its monohydrohalide salt in high yield with excellent selectivity. This unexpected selectivity has been explained in terms of the high affinity of the alkylated product for a single proton which attenuates the nucleophilicity of the remaining nitrogen atoms. Selectivity is dependent upon a number of factors including macrocycle ring size, solvent polarity, and the steric nature of the electrophile. The approach has allowed for a short, convergent route to bifunctional lanthanide chelators which are useful in therapeutic applications.
Process for preparing mono-N-alkylated polyazamacrocycles
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0374929B1
公开(公告)日:1998-03-25
MACROCYCLIC BIFUNCTIONAL CHELANTS, COMPLEXES THEREOF AND THEIR ANTIBODY CONJUGATES