Process for the synthesis of moxifloxacin hydrochloride
In yet another aspect the present invention provides a novel crystalline form of moxifloxacin hydrochloride herein designated Form C, and a process for the preparation of Form C which comprises the step of: The residue was stripped with ml methanol. The crystalline form-I of moxifloxacin according to claim 25, is having water content in the range of 0.
After the completion of reaction, 30 the reaction mass was concentrated to residue. According to an aspect of the invention there is provided a method of making a compound of formula IIas defined in claim 20, comprising condensing a compound of formula Ias defined in claim 18, with S,S -2,8-Diazabicyclo[4. Moxifloxacin hydrochloride Form C characterised by having a Raman spectrum with Raman peaks at The invention also relates to a method of making the new form and to pharmaceutical compositions containing it.
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