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Enzymatic synthesis of enantiomerically enriched d- and l-3-silylated alanines by deracemization of dl-5-silylmethylated hydantoins


Smith, Richard J; Pietzsch, Markus; Waniek, Thomas; Syldatk, Christoph; Bienz, Stefan (2001). Enzymatic synthesis of enantiomerically enriched d- and l-3-silylated alanines by deracemization of dl-5-silylmethylated hydantoins. Tetrahedron: Asymmetry, 12(1):157-165.

Abstract

Abstract—The hydantoinase process was shown to be extendable to the production of highly lipophilic, silicon-containing amino acids. Two hydantoinases of different origin and stereoselectivities and one L-N-carbamoylase were used for the highly stereoselective bioconversion of (dimethyl)phenylsilyl- and 1-methyl-1-silacyclopentyl substituted alanine derivatives. The enantiomeric purities and absolute configuration of the products were determined with reference compounds that were synthesized with the aid of the Evans oxazolidinone auxiliary.

Abstract

Abstract—The hydantoinase process was shown to be extendable to the production of highly lipophilic, silicon-containing amino acids. Two hydantoinases of different origin and stereoselectivities and one L-N-carbamoylase were used for the highly stereoselective bioconversion of (dimethyl)phenylsilyl- and 1-methyl-1-silacyclopentyl substituted alanine derivatives. The enantiomeric purities and absolute configuration of the products were determined with reference compounds that were synthesized with the aid of the Evans oxazolidinone auxiliary.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2001
Deposited On:28 Aug 2017 12:48
Last Modified:28 Aug 2017 12:48
Publisher:Elsevier
ISSN:0957-4166
Publisher DOI:https://doi.org/10.1016/S0957-4166(01)00028-3

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