Jf. Elsworth et al., NOVEL ACYCLIC LIGANDS .1. SYNTHESIS OF SOME DICARBOXAMIDE DERIVATIVES, South African Journal of Chemistry, 49(1-2), 1996, pp. 31-34
The synthesis of three novel acyclic bis(amino-substituted amides), 3,
4 and 5, each of which possesses a bridging carbon atom carrying a su
itable amino-bearing functionality, is described. These compounds may
serve as contrast agents in magnetic resonance imaging.