5delta-(3-quinuclidinyl)thiomethylpristinamycin IA
Virginiamycin S1, 4-(4-(dimethylamino)-N-methyl-L-phenylalanine)-5-(5-((1-azabicyclo(2.2.2)oct-3-ylthio)methyl)-4-oxo-L-2-piperidinecarboxylic Acid)-,(S)-