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Pharmaceutical cocrystal and salts of norfloxacin
Luleå tekniska universitet, Institutionen för hälsovetenskap, Medicinsk vetenskap.
Energy Technology and Thermal Process Chemistry, Umeå University.
Luleå tekniska universitet, Institutionen för hälsovetenskap, Medicinsk vetenskap.ORCID-id: 0000-0002-0654-5410
2006 (Engelska)Ingår i: Crystal Growth & Design, ISSN 1528-7483, E-ISSN 1528-7505, Vol. 6, nr 12, s. 2699-2708Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The aim of this study was to investigate the structural and pharmaceutical properties of norfloxacin (a poorly soluble antibacterial drug), its cocrystal, and salts. Norfloxacin in the anhydrous form (form A, 1) was crystallized. It was cocrystallized with isonicotinamide (2), and organic salts were prepared with succinic acid, malonic acid, and maleic acid (3-5, respectively). These phases were characterized by differential scanning calorimetry (DSC), infrared (IR) and Raman spectroscopy, and powder X-ray diffraction (PXRD). Single-crystal X-ray diffraction data were obtained, and crystal structures were solved. The apparent solubility of these phases was determined. Robust O-H⋯O, O-H⋯O-, O-H⋯N, N-H⋯O, N+-H-O -, and N-H⋯N interactions were present in all these structures. Quinolone moieties in these structures stack with π⋯π interactions and form channels to include CHCl3 or H2O. Herein we report a new cocrystal and salts of norfloxacin with improved aqueous solubility

Ort, förlag, år, upplaga, sidor
2006. Vol. 6, nr 12, s. 2699-2708
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URN: urn:nbn:se:ltu:diva-14023DOI: 10.1021/cg060327xISI: 000242575100016Scopus ID: 2-s2.0-33846133535Lokalt ID: d583a060-e8cb-11db-b9a9-000ea68e967bOAI: oai:DiVA.org:ltu-14023DiVA, id: diva2:986977
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Validerad; 2006; 20070412 (andbra)

Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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Basavoju, SrinivasVelaga, Sitaram

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