Enzymatic Conversion of Oligopeptide Amides to Oligopeptide Alkylesters
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
Oct 19, 2006
filing date -
Oct 20, 2005
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Abandoned
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Abstract
The present invention relates to enzymatic oligopeptide synthesis in the N→C direction, in particular to a process for the preparation of an optionally N-protected oligopeptide C-terminal alkylester comprising the step of reacting the corresponding optionally N-protected oligopeptide C-terminal carboxyamide with an alkyl alcohol, preferably methanol, in the presence of a peptide amidase. The formed C-terminal alkylester can subsequently be used for the coupling with another amino acid residue or oligopeptide. Therefore, inventors have found a very advantageous process for the preparation of oligopeptides.
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