| abstract |
The present disclosure provides novel Fe(III)-complexes according to Chemical Formula (I):as well as enantiomers (and diastereomers) and solvates thereof. In Chemical Formula (I), Z is selected from O, NH and NR, wherein R is a branched or linear C1-C15 alkyl. R<sup>1</sup> is C1-C15 alkyl. Further, the orientation of the amine groups of the cyclohexyl ring in Chemical Formula (I) defines a trans-isomer. A further aspect of the disclosure refers to a contrast agent for magnet resonance imaging, which includes the Fe(III)-complex according to the present disclosure. In addition, the present disclosure provides novel ligands according to Chemical Formula (II), as well as (diastereomers and) enantiomers thereof, which constitute intermediate products for preparation of prespecified Fe(III)-complexes. |