Pure S-(−)-9-fluoro-6,7-dihydro-8- (4-hydroxypiperidin-1-yl) -5-methyl-1-oxo-1H, 5H-benzo i, j quinolidine -2-carboxylic acid L-arginine salt tetrahydrate and process for producing the same

摘要

Pure S-()-9-fluoro-6,7-dihydro-8-(4-hydroxypiperidin-1-yl)-5-methyl-1-oxo-1H,-5H-benzo[i,j]quinolizine-2-carboxylic acid L-arginine salt tetrahydrate and a process for its preparation is disclosed.