(2S,5R)-7-oxo-2-(2-((S)-pyrrolidine-3-carbonyl)hydrazine-1-carbonyl)-1,6-diazabicyclo[3.2.1]octan-6-yl hydrogen sulfate

WCK-5153 is a Novel Inhibitor of PBP2 Showing Potent "β-Lactam Enhancer" Activity against Pseudomonas aeruginosa, Including Multidrug-Resistant Metallo-β-Lactamase-Producing High-Risk Clones. WCK 5153 demonstrated specific high-affinity binding to PBP2 of A. baumannii. WCK 5153 shows a potent β-lactam enhancer effect against A. baumannii, including a multidrug-resistant OXA-23-producing ST2 international clone.