FIELD: chemistry.
SUBSTANCE: invention relates to organic chemistry, in particular, to a hydrochloride salt crystal, a hydrochloride salt hydrate crystal and methane sulphonate salt crystal 7-{(3S,4S)-3-[(cyclopropylamino)methyl]-4-fluoropyrrolidin-1-yl}-6-fluoro-1-(2-fluoroethyl)-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid. Invention also relates to an antibacterial pharmaceutical preparation based on said crystal, a method of producing said crystals.
EFFECT: technical result: obtained crystals have high solubility in water, as well as high storage stability.
19 cl, 6 dwg, 4 tbl, 13 ex
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Year |
Author |
Number |
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