abstract |
According to the present invention there is provided the methanesulfone solvate of 7- (3-aminomethyl-4-methoxyiminopyrrolidin-1-yl) -1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3. -carboxylic acids with single organic solvents. \ t |