Patent · US Active

Preparation of enantiomerically enriched amines and amides by enzymatic resolution using a sulfonylacetic acid ester as acyl donor

US7824899B2 · kind B2 · utility

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3References
15Claims
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Key dates

Filing dateJun 21, 2007
Grant dateNov 2, 2010
Priority date
Expiry dateJun 16, 2029

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12P41/007
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

A process for the preparation of an enantiomerically enriched amine, is performed by a) cleaving a racemic mixture of a reaction product of i) a chiral amine and ii) an acyl donor, in the presence of a hydrolase, to obtain a mixture of an enantiomerically enriched amide and an enantiomerically enriched amine; or b) reacting an amine with an acyl donor, in the presence of a hydrolase, to obtain a mixture of an enantiomerically enriched amide and an enantiomerically enriched amine; and c) separating the enantiomerically enriched amide from the enantiomerically enriched amine, wherein the acyl donor is a sulphonylacetic acid ester. The process (1) leads to high enantioselectivities, and (2) high reactivities, (3) is based on an acyl donor accessible in a simple manner, (4) is suitable for a large number of very different substrates and/or (5) is suitable for carrying out at high substrate concentrations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.