4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-[(1R)-1-hydroxyethyl]-3-[[(2-nitrobenzoyl)oxy]methyl]-7-oxo-,2-propenyl ester, (5R,6S)-
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IWP-2 686770-61-6