Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone

Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone

The present invention relates to a process for the in situ preparation of optically pure (S)-3,4-dihydroxybutyric acid derivatives represented by the Formula [2] and more particularly, to a process which enables preparing optically pure (S)-3-hydroxy-gamma-butyrolactone represented by Formula [1] by...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: UPADHYAY PUSPESH KUMAR, KUMAR PRADEEP, DESHMUKH ANIS NAIM, GURJAR MUKUND KESHAO, UPADHYAY RAJESH KUMAR
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator UPADHYAY PUSPESH KUMAR
KUMAR PRADEEP
DESHMUKH ANIS NAIM
GURJAR MUKUND KESHAO
UPADHYAY RAJESH KUMAR
description The present invention relates to a process for the in situ preparation of optically pure (S)-3,4-dihydroxybutyric acid derivatives represented by the Formula [2] and more particularly, to a process which enables preparing optically pure (S)-3-hydroxy-gamma-butyrolactone represented by Formula [1] by oxidation of alpha- or beta-(1,4) linked disaccharide or oligosaccharide with an oxidant under basic condition to give acid and cyclization sequentially under acidic condition to give (S)-3-hydroxy-gamma-butyrolactone.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US6713639B1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US6713639B1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US6713639B13</originalsourceid><addsrcrecordid>eNqNyrEKwjAQANAsDqL-w406ZCiBimtFcRGE6lzOeK2BJBcuKZi_d_EDnN7ylup6E7aUM4wskIQSiosTUMRYHAcSZ9H7CmkWgm2_00a_60v4U_WEIaB-zqUKe7SFI63VYkSfafNzpeB8uh8vmhIPlBNailSGR9_uG9OaQ9eYP8oXjYA2NA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone</title><source>esp@cenet</source><creator>UPADHYAY PUSPESH KUMAR ; KUMAR PRADEEP ; DESHMUKH ANIS NAIM ; GURJAR MUKUND KESHAO ; UPADHYAY RAJESH KUMAR</creator><creatorcontrib>UPADHYAY PUSPESH KUMAR ; KUMAR PRADEEP ; DESHMUKH ANIS NAIM ; GURJAR MUKUND KESHAO ; UPADHYAY RAJESH KUMAR</creatorcontrib><description>The present invention relates to a process for the in situ preparation of optically pure (S)-3,4-dihydroxybutyric acid derivatives represented by the Formula [2] and more particularly, to a process which enables preparing optically pure (S)-3-hydroxy-gamma-butyrolactone represented by Formula [1] by oxidation of alpha- or beta-(1,4) linked disaccharide or oligosaccharide with an oxidant under basic condition to give acid and cyclization sequentially under acidic condition to give (S)-3-hydroxy-gamma-butyrolactone.</description><edition>7</edition><language>eng</language><subject>CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20040330&amp;DB=EPODOC&amp;CC=US&amp;NR=6713639B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20040330&amp;DB=EPODOC&amp;CC=US&amp;NR=6713639B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>UPADHYAY PUSPESH KUMAR</creatorcontrib><creatorcontrib>KUMAR PRADEEP</creatorcontrib><creatorcontrib>DESHMUKH ANIS NAIM</creatorcontrib><creatorcontrib>GURJAR MUKUND KESHAO</creatorcontrib><creatorcontrib>UPADHYAY RAJESH KUMAR</creatorcontrib><title>Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone</title><description>The present invention relates to a process for the in situ preparation of optically pure (S)-3,4-dihydroxybutyric acid derivatives represented by the Formula [2] and more particularly, to a process which enables preparing optically pure (S)-3-hydroxy-gamma-butyrolactone represented by Formula [1] by oxidation of alpha- or beta-(1,4) linked disaccharide or oligosaccharide with an oxidant under basic condition to give acid and cyclization sequentially under acidic condition to give (S)-3-hydroxy-gamma-butyrolactone.</description><subject>CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEKwjAQANAsDqL-w406ZCiBimtFcRGE6lzOeK2BJBcuKZi_d_EDnN7ylup6E7aUM4wskIQSiosTUMRYHAcSZ9H7CmkWgm2_00a_60v4U_WEIaB-zqUKe7SFI63VYkSfafNzpeB8uh8vmhIPlBNailSGR9_uG9OaQ9eYP8oXjYA2NA</recordid><startdate>20040330</startdate><enddate>20040330</enddate><creator>UPADHYAY PUSPESH KUMAR</creator><creator>KUMAR PRADEEP</creator><creator>DESHMUKH ANIS NAIM</creator><creator>GURJAR MUKUND KESHAO</creator><creator>UPADHYAY RAJESH KUMAR</creator><scope>EVB</scope></search><sort><creationdate>20040330</creationdate><title>Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone</title><author>UPADHYAY PUSPESH KUMAR ; KUMAR PRADEEP ; DESHMUKH ANIS NAIM ; GURJAR MUKUND KESHAO ; UPADHYAY RAJESH KUMAR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6713639B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><topic>CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>UPADHYAY PUSPESH KUMAR</creatorcontrib><creatorcontrib>KUMAR PRADEEP</creatorcontrib><creatorcontrib>DESHMUKH ANIS NAIM</creatorcontrib><creatorcontrib>GURJAR MUKUND KESHAO</creatorcontrib><creatorcontrib>UPADHYAY RAJESH KUMAR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>UPADHYAY PUSPESH KUMAR</au><au>KUMAR PRADEEP</au><au>DESHMUKH ANIS NAIM</au><au>GURJAR MUKUND KESHAO</au><au>UPADHYAY RAJESH KUMAR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone</title><date>2004-03-30</date><risdate>2004</risdate><abstract>The present invention relates to a process for the in situ preparation of optically pure (S)-3,4-dihydroxybutyric acid derivatives represented by the Formula [2] and more particularly, to a process which enables preparing optically pure (S)-3-hydroxy-gamma-butyrolactone represented by Formula [1] by oxidation of alpha- or beta-(1,4) linked disaccharide or oligosaccharide with an oxidant under basic condition to give acid and cyclization sequentially under acidic condition to give (S)-3-hydroxy-gamma-butyrolactone.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_US6713639B1
source esp@cenet
subjects CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T21%3A20%3A39IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=UPADHYAY%20PUSPESH%20KUMAR&rft.date=2004-03-30&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS6713639B1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true