AIDS-104592 AIDS104592 Cephalosporin fluoroquinolonate deriv S-CLCA [3-[(Acetyloxy)methyl]-2-carboxy-8-oxo-5-thia-1-azabicyclo-[4,2,0]oct-2-en-7-yl]ammonium, 1-cyclopropyl-6-fluoro-7-chloro-1,4-dihydro-4-oxo-3-quinoline carboxylate