2015•Advanced Synthesis & CatalysisRequires access

Enantiopure N‐Benzyloxycarbonyl‐β2‐amino Acid Allyl Esters from Racemic β‐Lactams by Dynamic Kinetic Resolution using Candida antarctica Lipase B

Eleonora Gianolio, Resmi Mohan, Albrecht Berkessel

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Abstract

Abstract The dynamic kinetic resolution of α‐substituted racemic β‐lactams by alcoholytic ring‐opening, catalyzed by immobilized lipase B from Candida antarctica is described. With this process, a variety of racemic α‐substituted N‐Cbz‐azetidinones (Cbz=benzyloxycarbonyl) was transformed to the corresponding N‐Cbz‐protected β2‐amino acid allyl esters with high enantioselectivity (up to 99%) and high yields (up to quantitative) at room temperature. magnified image

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Abstract The dynamic kinetic resolution of α‐substituted racemic β‐lactams by alcoholytic ring‐opening, catalyzed by immobilized lipase B from Candida antarctica is described. With this process, a variety of racemic α‐substituted N‐Cbz‐azetidinones (Cbz=benzyloxycarbonyl) was transformed to the corresponding N‐Cbz‐protected β2‐amino acid allyl esters with high enantioselectivity (up to 99%) and high yields (up to quantitative) at room temperature. magnified image

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Available abstract

Abstract The dynamic kinetic resolution of α‐substituted racemic β‐lactams by alcoholytic ring‐opening, catalyzed by immobilized lipase B from Candida antarctica is described. With this process, a variety of racemic α‐substituted N‐Cbz‐azetidinones (Cbz=benzyloxycarbonyl) was transformed to the corresponding N‐Cbz‐protected β2‐amino acid allyl esters with high enantioselectivity (up to 99%) and high yields (up to quantitative) at room temperature. magnified image

Key concepts: Candida antarctica, Enantiopure drug, Kinetic resolution, Chemistry, Lipase, Resolution (logic), Hydrolysis, Organic chemistry

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Enantiopure N‐Benzyloxycarbonyl‐β2‐amino Acid Allyl Esters from Racemic β‐Lactams by Dynamic Kinetic Resolution using Candida antarctica Lipase B — Research Paper | ScholarLens