摘要:
Provided are macrocyclic compounds having a macrocyclic core which has at least one macrocyclic donor and at least one pendant group which has at least one donor group. The macrocyclic compounds can be complexed to Fe(II) and Ni(II). The macrocyclic compounds can be used in imaging methods. For example, the compounds can be used MRI paraCEST contrast agents.
摘要:
Provided are macrocyclic compounds having a macrocyclic core which has at least one macrocyclic donor and at least one pendant group which has at least one donor group. The macrocyclic compounds can be complexed to Fe(II) and Ni(II). The macrocyclic compounds can be used in imaging methods. For example, the compounds can be used MRI paraCEST contrast agents.
摘要:
Compounds and uses of the compounds are provided. The compounds can be used as Fe(II) sequestering compounds. For example, these compounds can be used to sequester Fe(II) in cells, organs, vasculature, or tissues. Also, provided are compositions and methods of using the them for sequestering Fe(II) in an individual. The compounds can be used as MRI paraCEST contrast agents.
摘要:
The present invention provides the first examples of metal complexes that show catalytic behavior in RNA transesterification under physiological relevant conditions i.e., 37.degree. C. and neutral pH. The metal complexes are catalytically active and kinetically inert to metal ion dissociation. The metal complexes are formed by the union of a central metal ion with a non-metallic ion or molecule. The metal ion comprises copper, zinc, cobalt, nickel, palladium, lead, iridium, maganese, iron, molybdenum, vanadium, titanium, ruthenium, bismuth, cadmium, yttrium, magnesium, rhodium, uranium, the transition metals and the Lanthanide metals. The non-metallic ion comprises a ligand or complexing agent. The preferred ligand is one which strongly chelates lanthanides, and more preferably, forms a cationic complex of the lanthanides.