(2S,5R)-Benzhydryl 3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4-oxide

This compound is a beta-lactamase inhibitor intermediate used in the manufacture of tazobactam. It features a bicyclic thiazolidine ring system with benzhydryl ester and amide functional groups.