DC Field | Value | Language |
---|---|---|
dc.contributor.author | Uhm, Ki-Nam | ko |
dc.contributor.author | Lee, Sang-Joon | ko |
dc.contributor.author | Kim, Hyung-kwoun | ko |
dc.contributor.author | Kang, Han-Young | ko |
dc.contributor.author | Lee, Younghoon | ko |
dc.date.accessioned | 2010-01-08T06:48:11Z | - |
dc.date.available | 2010-01-08T06:48:11Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-04 | - |
dc.identifier.citation | JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC, v.45, no.1-2, pp.34 - 38 | - |
dc.identifier.issn | 1381-1177 | - |
dc.identifier.uri | http://hdl.handle.net/10203/16233 | - |
dc.description.abstract | Enantiomerically pure 2-chloromandelic acid esters are important chiral building blocks for synthesis of a wide range of pharmaceutical products, such as an anti-thrombotic agent, (S)-clopidogrel. An efficient and novel process for resolution of methyl 2-chloromandelate was developed by using a lipase-mediated transesterification. Among 11 hydrolytic enzymes examined, Candida antarctica lipase A (CAL-A) showed the highest enantioselectivity and reaction rate toward methyl (S)-2-chloromandelate. Methyl (R)-2-chloromandelate was obtained in enantiomerically pure form (> 99% ee) and 41% yield through the lipase-mediated resolution under a solvent-free condition. CAL-A maintained its catalytic activity during 13 cycles of repeated use without significant decrease in enantioselectivity, indicating that the method is economical and easy to scale-up for commercial production of methyl (R)-2-chloromandelate. (c) 2006 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | CATALYZED TRANSESTERIFICATIONS | - |
dc.subject | ORGANIC MEDIA | - |
dc.subject | KLEBSIELLA-OXYTOCA | - |
dc.subject | SECONDARY ALCOHOLS | - |
dc.subject | MANDELIC-ACIDS | - |
dc.subject | BIPHASIC MEDIA | - |
dc.subject | BIOCATALYSIS | - |
dc.subject | OPTIMIZATION | - |
dc.subject | SELECTIVITY | - |
dc.subject | HYDROLASE | - |
dc.title | Enantioselective resolution of methyl 2-chloromandelate by Candida antarctica lipase A in a solvent-free transesterification reaction | - |
dc.type | Article | - |
dc.identifier.wosid | 000244838400006 | - |
dc.identifier.scopusid | 2-s2.0-33847273257 | - |
dc.type.rims | ART | - |
dc.citation.volume | 45 | - |
dc.citation.issue | 1-2 | - |
dc.citation.beginningpage | 34 | - |
dc.citation.endingpage | 38 | - |
dc.citation.publicationname | JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC | - |
dc.identifier.doi | 10.1016/j.molcatb.2006.10.006 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Lee, Younghoon | - |
dc.contributor.nonIdAuthor | Lee, Sang-Joon | - |
dc.contributor.nonIdAuthor | Kim, Hyung-kwoun | - |
dc.contributor.nonIdAuthor | Kang, Han-Young | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Candida antarctica lipase A | - |
dc.subject.keywordAuthor | methyl (R)-2-chloromandelate | - |
dc.subject.keywordAuthor | transesterification | - |
dc.subject.keywordAuthor | solvent-free reaction | - |
dc.subject.keywordAuthor | vinyl propionate | - |
dc.subject.keywordPlus | CATALYZED TRANSESTERIFICATIONS | - |
dc.subject.keywordPlus | ORGANIC MEDIA | - |
dc.subject.keywordPlus | KLEBSIELLA-OXYTOCA | - |
dc.subject.keywordPlus | SECONDARY ALCOHOLS | - |
dc.subject.keywordPlus | MANDELIC-ACIDS | - |
dc.subject.keywordPlus | BIPHASIC MEDIA | - |
dc.subject.keywordPlus | BIOCATALYSIS | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | SELECTIVITY | - |
dc.subject.keywordPlus | HYDROLASE | - |
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