An efficient method for the synthesis of 3-mercapto-1-(1,3-thiazolin2-yl)azetidine (1) is described. This thiol synthesis was achieved in 3 steps from readily available 3-methanesulfonyloxyazetidine via key intermediates, Bunte salts (3 and 5). The final step was enabled to proceed under mild conditions using the benzylthiol-mediated cleavage of the S-S bond in the Bunte salt (3).
Tebipenem pivoxil hydrobromide. Penicillin-binding protein (PBP) (bacterial) inhibitor, Carbapenem antibiotic, Treatment of urinary tract infections