Removal of these impurities by usual purification procedures, such as recrystallisation, distillation and washing, is difficult and requires extensive and expensive multiple purification processes. The XRD pattern may comprise further peaks at Yet another object of the synthesis is to provide an industrially-advantageous, cost- effective and environmentally-friendly process for preparing highly-pure prulifloxacin in high yields.
According to another aspect of the present invention, there is provided a pharmaceutical composition comprising crystalline prulifloxacin Form A as described above, together with one or more pharmaceutically acceptable excipients. Infra-Red IR absorption spectra of Type I crystals of prulifloxacin prepared by the process of the present invention.
Crystalline Form A of prulifloxacin according to claim 1 or 2, characterized by having an XRD pattern as shown in Figure 1.
Quinolones and fluoroquinolones are bactericidal drugs, eradicating bacteria by interfering with DNA replication.
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