(S)-(-)-5-Amino-7-(7-amino-5-azaspiro[2,4]hept-5-yl)-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methyl-4-oxoquinoline-3-carboxylic acid 167887-97-0 AIDS-089045 AIDS089045 HSR-903 Olamufloxacin mesilate