(5r-(3(s*),5-alpha,6-alpha(r*)))-inoethyl)-3-pyrrolidinyl)thio)-7-oxo

6-(1-hydroxyethyl)-2-(1-acetimidoylpyrrolidin-3-ylthio)-1-carbaren-2-em-3-ca

1-azabicyclo(3.2.0)hept-2-ene-2-carboxylicacid,6-(1-hydroxyethyl)-3-((1-(1-im

(5r,6s)-2-[1-acetamidoylpyrrolidin-3(s)-ylthio]-6-[1(r)-hydroxyethyl]-2-carbapenem-3-carboxylic acid