( )-(4R,5S,6S)-6-((R)-1-Hydroxyethyl)-3-((3S,5S)-5-((R)-1-hydroxy-3-(methyl-amino)propyl)-3-pyrrolidinyl)thio)-4-methyl-7-oxo-1-azabicyclo(3.2.0)hept-2-ene-2-carboxylic acid. 149951-16-6 Lenapenem Lenapenem [INN]