Enzymatic ammonolysis process for the preparation of...

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...

Reexamination Certificate

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C548S536000

Reexamination Certificate

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11119552

ABSTRACT:
An enzymatic ammonolysis process is provided for the preparation of intermediates used in preparing dipeptidyl peptidase IV inhibitors wherein the enzymeCandida antarcticalipase-B is used to catalyze the ammonolysis process.

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