Potassium Sulfate → HCID 71570094, compound

Participants

Reaction Steps

1 g of 7-{(3S,4S)-3-[(cyclopropylamino)methyl]-4-fluoropyrrolidine-1-yl}-6-fluoro-1-(2-fluoroethyl)-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride salt (crystals A) was spread over a petri dish and placed in a desiccator in which a saturated potassium sulfate solution had been placed. The crystals A was stored at 25° C. for 1 week to obtain 7-{(3S,4S)-3-[(cyclopropylamino)methyl]-4-fluoropyrrolidine-1-yl}-6-fluoro-1-(2-fluoroethyl)-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride salt hydrate (crystals B).

Provenance & Evidence