title: Analytical-physical profile of the novel macrolide antibiotic flurithromycin ethylsuccinate.
abstract: Data are reported on the structural characterization of flurithromycin ethylsuccinate (FE, CAS 82730-23-2), a novel macrolide antibiotic. UV, IR, NMR and MS spectra confirmed the structure; in particular the presence of ketonic-hemiketalic equilibrium, already described for flurithromycin A, is supported by NMR and HPLC studies. Moreover physico-chemical properties and stability were studied; the product exhibits a good stability at solid state, whereas degradation products are present both in acidic and basic solution. Microbiological activity and principal pharmaceutical features were carried out.
authors.affiliation: R & D Chemistry and Pharmacy Department, Pierrel S.p.A., Milan, Italy.
authors.forename: N
authors.initials: N
authors.lastname: Colombo
authors.forename: A
authors.initials: A
authors.lastname: Depaoli
authors.forename: M
authors.initials: M
authors.lastname: Gobetti
authors.forename: M G
authors.initials: MG
authors.lastname: Saorin
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000493:pharmacokinetics / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D001681:Biological Assay; D002152:Calorimetry, Differential Scanning; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D004285:Dogs; D004917:Erythromycin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008826:Microbial Sensitivity Tests; D051381:Rats; D012995:Solubility; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000900:Anti-Bacterial Agents; C045925:flurithromycin; D004917:Erythromycin