Antibody conjugates with macrocyclic ligands

Details Antibody conjugates with macrocyclic ligands Antibody conjugates with macrocyclic ligands

1993-03-18

1993-12-21

Chan, Y. Christina

Drug, bio-affecting and body treating compositions

In vivo diagnosis or in vivo testing

Magnetic imaging agent

5303911, 5303913, 5303915, 424 8591, 540465, 540467, 540469, 540470, 540471, 540473, 540474, A61K 39395, A61K 4722, A61K 4716, A61K 4706

Patent

active

052719278

ABSTRACT:
The conjugation of antibodies to a macrocyclic conjugate compound wherein the conjugate compound has the structure (I), wherein R.sup.1 is --(CH.sub.2).sub.p --R.sup.6 --CH.sub.2).sub.q -- where p and q are the same or different and are 0, 1 or 2, and --R.sup.6 -- is --((CH.sub.2).sub.n --, where n is 0 or 1, --NH--, --O--, --S-- or (II), R.sup.1 optionally being alkyl substituted, provided that neither p nor q is 0 unless R.sup.6 is --CH.sub.2 --; R.sup.2 are --CH.sub.2 CH.sub.2 -- or --CH.sub.2 CH.sub.2 CH.sub.2 --, optionally alkyl, alkoxyalkyl or hydroxyalkyl substituted; R.sup.3 are the same or different and are --H, alkyl, hydroxyalkyl, alkoxyalkyl, carboxyalkyl, carboxyalkyl ester, phosphate, sulphonate or phosphonate; R.sup.4 is one of the compounds of formula (III) optionally alkyl substituted, wherein R.sup.7 is --H, alkyl, hydroxyalkyl, or alkoxyalkyl provided that when R.sup.4 is (III d), R.sup.3 is not carboxyalkyl, R.sup.5 is a linker, and Ab is an antibody. The conjugate compound provides for complexes of metals such as Tc, Co, Re, Cu, Au and Ag which are useful reagents for in vivo imaging and therapy.

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