Chromatographic study of complex formation of adamantane derivatives with β-cyclodextrin

A water-soluble aza-adamantyl nitroxide radical and its complexes with β-cyclodextrin derivatives

“…[19][20][21] It is well-known that b-cyclodextrin (b-CD, 6.0 Å in cavity size) complexes strongly with adamantane and its derivatives. [22][23][24][25][26][27] Regarding organic radicals, b-CD was shown by Rassat to include piperidine-, oxazolidine-and isoindoline-based nitroxides. 28 Karoui et al also reported that the hydroperoxyl spin adduct of a pyrroline nitroxide could be included within methylated b-CD, which provided an increase in the stability of the adduct under reducing conditions.…”