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Fermentation process for (5R,6S,8S)-3-(2-aminoethylthio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3. 2.0]hept-2-ene-2-carboxylic acid

US Patent 4335212 · Granted Jun 15, 1982

Estimated economic value: $5,606,000

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