Polydentate Nanoplatform Based on Hyperbranched Polyol Boltorn

In chemistry and technology now is rapidly developing a direction connected with the synthesis of nano-size hyperbranched polymers (HBP) and related functional derivatives possessing a wide range of practically useful properties [1, 2]. Nontoxic hyperbranched polyols of “Boltorn Н” series are promising objects for obtaining the metallocomplex compounds of biomedical application, with the polydentate polyol platform as a ligand [3, 4]. However, the complexes of “Boltorn Н” with the d-metal ions are very unstable. This may be a consequence of intraand intermolecular hydrogen bonding of hydroxy groups of the molecule that decreases significantly their steric accessibility and capability of complex formation [5, 6]. A route for overcoming this problem is the modification of HBP by means of substitution of OH groups by the groups more active toward metal ions.