Abstract: Provided is a compound and methods for preparation thereof according to formula (I) where A1, A2, A3, and A4 are each a group containing 1 to 40 carbon atoms and at least one carboxylic group, R, R? and R? are each hydrogen or a group containing 1 to 80 carbon atoms, M is bivalent or an element capable of complexing with a pyrrole nitrogen atom, L is a linking group, B is a fullerene, and the compound is soluble in water.

Abstract: The present invention describes the use of the magnetic magnesium isotope 25Mg2+ for the manufacture of a medicament for treating hypoxia. Furthermore, the present invention provides a medicament for treating hypoxia comprising the magnetic magnesium isotope 25Mg2+ and a porphylleren compound according to formula (I) wherein the residues A1, A2, A3, and A4 independently are a group containing 1 to 40 carbon atoms and at least one carboxylic group, the residues R, R? and R? independently are hydrogen or a group containing 1 to 80 carbon atoms, M is 2 H or an element capable of complexing with pyrrole nitrogen atom and L is a linking group and B is a fullerene residue.

Abstract: Provides is a porphylleren compound (and methods for preparation thereof) according to formula (I) where the residues A1, A2 A3, and A4 independently are a group containing 1 to 40 carbon atoms and at least one carboxylic group, the residues R, R? and R? independently are hydrogen or a group containing 1 to 80 carbon atoms, M is 2 H or an element capable of complexing with pyrrole nitrogen atom and L is a linking group and B is a fullerene residue.