178173-88-1 7-((S)-3-Amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methyl-5-dimehylamino-4-oxoquinoline-3-carboxylic acid 7-((S)-3-Amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methyl-5-methylamino-4-oxoquinoline-3-carboxylic acid