4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Heterocyclic carbon compounds containing a hetero ring...

Ho Sung Yu

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Process for manufacturing an optically active...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate

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Process for preparing(R)-4-cyano-3-hydroxybutyric acid ester

Organic compounds -- part of the class 532-570 series – Organic compounds – Nitriles
Reexamination Certificate

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