C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 5/00 (2006.01) A61K 31/28 (2006.01) A61K 49/00 (2006.01) A61K 49/06 (2006.01) A61K 51/00 (2006.01) C07C 229/16 (2006.01) C07C 229/76 (2006.01) C07F 11/00 (2006.01) C07F 13/00 (2006.01) C07F 15/00 (2006.01)
Patent
CA 2154559
Complex compounds and their salts consist of at least one metal ion and a complexing agent having general formula (I), in which Z1 and Z2 represent independently from each other a hydrogen atom, the residue -(CH2)m-(C6H4)q-(O)k- (CH2)n-(C6H4)l-(O)r-R, or the residue -(CH2)m-(C6H10)q-(O)k- (CH2)n-(C6H10)l-(O)r-R, in which m and n are the numbers 0-5, q, k, l and r are the numbers 0 or 1 and s is the number 1 or 2; R stands for a hydrogen atom, an if required OR1-substituted, straight-chain or branched-chain C1-C6-alkyl residue or a CH2-COOR1 group, in which R1 stands for a hydrogen atom, a C1-C6-alkyl residue or a benzyl group, with the proviso that one of the substituents Z1 or Z2 stands for a hydrogen atom and the other does not, and that a direct oxygen-oxygen bond is not allowed. Also disclosed is their use for producing radiotherapy agents and NMR and radiographic diagnosing agents, in particular for contrasting the hepatobiliary system. A process for producing these compounds and agents is further disclosed.
Bauer Hans
Frenzel Thomas
Gries Heinz
Hilscher Jean-Claude
Muhler Andreas
Marks & Clerk
Schering Aktiengesellschaft
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