NOVEL POLYMORPHIC FORMS OF GEMIFLOXACIN MESYLATE

摘要

The present invention relates to novel crystalline forms of 1-cyclopropyl-y-chloro-?- fluoro-4-oxo-1,4-dihydro[1,8]-naphthyridine-3-carboxylic acid mesylate salt (Gemifloxacin mesylate) hereafter designated as Gemifloxacin mesylate polymorphic Forms-H, I, J, K, L and M and process for the preparation thereof.