Fernández-Álvaro E, Kourist R, Winter J, Böttcher D, Liebeton K, Naumer C, Eck J, Leggewie C, Jaeger KE, Streit W, Bornscheuer UT. Enantioselective kinetic resolution of phenylalkyl carboxylic acids using metagenome-derived esterases.
Microb Biotechnol 2009;
3:59-64. [PMID:
21255306 PMCID:
PMC3815947 DOI:
10.1111/j.1751-7915.2009.00141.x]
[Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Enantiomerically pure β-arylalkyl carboxylic acids are important synthetic intermediates for the preparation of a wide range of compounds with biological and pharmacological activities. A library of 83 enzymes isolated from the metagenome was searched for activity in the hydrolysis of ethyl esters of three racemic phenylalkyl carboxylic acids by a microtiter plate-based screening using a pH-indicator assay. Out of these, 20 enzymes were found to be active and were subjected to analytical scale biocatalysis in order to determine their enantioselectivity. The most enantioselective and also enantiocomplementary biocatalysts were then used for preparative scale reactions. Thus, both enantiomers of each of the three phenylalkyl carboxylic acids studied could be obtained in excellent optical purity and high yields.
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