Hydroxy-amino acids

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

Reexamination Certificate

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C549S076000, C562S444000, C562S567000

Reexamination Certificate

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07081535

ABSTRACT:
Hydroxy-amino acids are provided and are prepared by contacting a substituted β-ketodiester having a ketone group and two ester functional groups with a ketoreductase under conditions permitting the reduction of the keytone group to an alcohol. Only one of the ester functional groups is regioselectively hydrolyzed to the corresponding carboxylic acid, whereby a non-hydrolyzed ester functional group remains. The carboxylic acid is converted to an amine to produce a hydroxy-amino acid.

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