64067-13-6

(5R,6S)-6-[(1R)-1-Hydroxyethyl]-3-[[2-[[[(4-nitrophenyl)methoxy]carbonyl]amino]ethyl]thio]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic Acid (4-Nitrophenyl)methyl Ester is an intermediate in the synthesis of Thienamycin (T344270). Thienamycin is one of the most potent naturally produced antibiotics known thus far. It has excellent activity against both Gram-positive and Gram-negative bacteria and is resistant to bacterial β-lactamase enzymes.