AIDS-104588 AIDS104588 Cephalosporin fluoroquinolonate deriv S-PET [3-[1H-1,2,3-triazol-5-yl)-thio]methyl]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4,2,0]oct-2-en-7-yl] ammonium, 1-ethyl-6-fluoro-7-(piperazin-1-yl)-1,4-dihydro-4-oxo-3-quinoline carboxylate