1,4,7,10-Tetraazacyclododecane butyltriols, processes for their production and pharmaceutical agents containing them

Abstract

1,4,7,10-Tetraazacyclodedecane butyltriols of general formula I A in which R 1 means hydrogen or a metal ion equivalent independent of one another and R 2 means a butyltriol radical as well as their salts with organic or inorganic bases or amino acids are valuable pharmaceutical agents.

1 - 19 . (canceled)  
     
     
         20 . A method of performing in vivo NMR spectroscopy in a patient comprising administering a compound as a susceptibility agent which has the formula I A   
       
         
           
           
               
               
           
         
       
       in which 
 each R 1  is hydrogen or a metal ion equivalent, independent of one another and  
 R 2  is butyltriol  
 or a salt thereof with an organic or inorganic base or an amino acid, and at least two of the substitutens R 1  are metal ion equivalents.  
 
     
     
         21 . A method of radiation therapy of a patient comprising administering as a photon and electron emitting agent, a compound which has the formula I A   
       
         
           
           
               
               
           
         
       
       in which 
 each R 1  is hydrogen or a metal ion equivalent, independent of one another and  
 R 2  is butyltriol  
 or a salt thereof with an organic or inorganic base or an amino acid, and at least two of the substitutens R 1  are metal ion equivalents.