Novel peroxosolvates of quinolone antibiotics containing large hydrogen peroxide clusters

Novel class of multicomponent quinolone antibiotics,crystalline hydrogen peroxide adducts of nalidixic acid C₁₂H₁₂N₂O₃ · H₂O₂ and ciprofloxacin C₁₇H₁₈F₁N₃O₃ · 5 H₂O₂, were prepared from highly concentrated hydrogen peroxide, and their structures were determined by X-ray crystallography. The second compound contains decameric H-bonded hydrogen peroxide clusters, which makes this substance one of the richest in hydrogen peroxide among organic peroxosolvates.