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PROCESS IMPROVEMENT IN THE PREPARATION OF (4R, 5S, 6S)-3-[[(2R,3R)-2-[[[(S)-2-AMINO-3-METHYL-1-OXOBUTYL]AMINO]METHYL]TETRAHYDRO-3-FURANYL]THIO]-6-[(R)-1-HYDROXYETHYL]-4-METHYL-7-OXO-1-AZABICYCLO[3.2.0]HEPT-2-ENE-2-CARBOXYLIC ACID

US Patent 6649756 · Granted Nov 18, 2003

Estimated economic value: $88,523,000

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