Process for the production of metal-complex carboxylic acid amides
申请人:Schering Aktiengesellschaft
公开号:US06045776A1
公开(公告)日:2000-04-04
The invention relates to a process for the production of metal-complex carboxylic acid amides, characterized in that a metal-complex carboxylic acid mixture that consists of the metal-complex carboxylic acid and at least one solubilizing substance in dimethyl sulfoxide (DMSO) is pretreated with a dehydrating reagent, optionally with the addition of a coupling adjuvant, and is then reacted with an amine of general formula I A(NH.sub.2).sub.n (I), in which A stands for the radical of a natural or synthetic amine, and n stands for numbers 1 to 100.
Macrocyclic metal complex carboxylic acids, their use as well as process
申请人:Schering Aktiengesellschaft
公开号:US05919433A1
公开(公告)日:1999-07-06
The invention relates to new macrocyclic metal complex carboxylic acids of formula II ##STR1## whereby Z.sup.o stands for a metal ion equivalent of atomic numbers 58-71 and R stands for a CHX.sup.1 --CO--NH--CHY.sup.1 --(CH.sub.2).sub.f --COOH group, in which X.sup.1 and Y.sup.1, independently of one another, mean a hydrogen atom, a straight-chain or branched C.sub.1 -C.sub.7 alkyl radical, a phenyl or benzyl group and f means numbers 0 to 9. They can be used as intermediate stages for synthesis of cascade polymer complexes that are suitable as diagnostic agents.