(5R,6S)-6-[(1R)-1-hydroxyethyl]-7-oxo-3-[(3S)-1-oxothiolan-3-yl]sulfanyl-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Sulopenem is a parenteral thiopenem with broad-spectrum antibacterial activity against most gram-positive and gram-negative bacteria. Sulopenem is not active against Pseudomonas aeruginosa. In addition, this agent is fairly stable against hydrolysis by various beta-lactamases.