≥98%，类白色粉末

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  Doripenem (2S,4R)-2-(hydroxymethyl)-4-[(methylsulfonyl)oxy]-1-Pyrrolidinecarboxylic acid,(4-nitrophenyl)methyl ester  (Doripenem side-chain intermediate)                      CAS No.:127626-37-3 4-Nitrobenzyl(2S,4S)-4-acetylthio-2-[[N-sulfamoyl-N-(tert-butoxycarbonyl)amino]methyl]pyrrolidine-1-carboxylate    (Doripenem side-chain)                            CAS No: 491878-06-9 (4R,5S,6S)-3-[[(3S,5S)-5-[[(Aminosulfonyl)amino]methyl]-1-[[(4-nitrophenyl)methoxy]carbonyl]-3-pyrrolidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid (4-nitrophenyl) methyl ester (Doripenem Condensation Compound)            CAS NO.: 491878-07-0

Intermediate for Penem

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