Quinupristin; 4-[4-(DiMethylaMino)-N-Methyl-L-phenylalanine]-5-[(2S,5R)-5-[[[(3S)-1-azabicyclo[2.2.2]oct-3-yl]thio]Methyl]-4-oxo-2-piperidinecarboxylic acid]virginiaMycin S1; Antibiotic RP 57669; RP 57669; RP 68888; Quinupristin(RP-57669); QuinupristinDiscontinued; Quinupristin Mesylate