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Synonyms: (4R,5R,6S)-3-[(3S,5S)-5-[(3-Carboxyphenyl)carbamoyl]pyrrolidin-3-yl]sulfanyl-6-(1-hydroxyethyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Intermediate: MPBA / 3-[[[(2S,4S)-4-Mercapto-1-(4-nitrobenzyloxy)carbonyl-2-pyrrolidinyl]carbonyl]amino]benzoic acid
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