1-Azabicyclo(3.2.0)hept-2-ene-2-carboxylic acid, 3-(((3S,5S)-5-(((aminosulfonyl)amino)methyl)-3-pyrrolidinyl)thio)-6-((1R)-1-hydroxyethyl)-4-methyl-7-oxo-, (4R,5S,6S)- 1-Azabicyclo(3.2.0)hept-2-ene-2-carboxylic acid, 3-((5-(((aminosulfonyl)amino)methyl)-3-pyrrolidinyl)thio)-6-(1-hydroxyethyl)-4-methyl-7-oxo-, (4R-(3(3S*,5S*),4alpha,5beta,6beta(R*)))- 148016-81-3 Doripenem Doripenem [USAN:INN] S 4661 S-4661