Method for isolating (R)-tofisopam

(R)-tofisopam, substantially free of the (S)-enantiomer of tofisopam, is obtained by separating the enantiomers of tofisopam by chromatography employing a chiral separation medium comprising (i) (2S)-2-{(1S)[(3,5-dinitrophenyl)carbonylamino]phenylmethyl}-3,3-dimethylbutanoate, covalently bound to si...

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Hauptverfasser:	GALBRAITH KIMM B, PERRIN SCOTT R, YE NAIDONG
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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creator	GALBRAITH KIMM B PERRIN SCOTT R YE NAIDONG
description	(R)-tofisopam, substantially free of the (S)-enantiomer of tofisopam, is obtained by separating the enantiomers of tofisopam by chromatography employing a chiral separation medium comprising (i) (2S)-2-{(1S)[(3,5-dinitrophenyl)carbonylamino]phenylmethyl}-3,3-dimethylbutanoate, covalently bound to silica through an alkylene ester linkage or (ii) an amylose derivative of formula I: wherein each R and n are defined herein; the amylose derivative being coated on a porous inorganic carrier or a porous organic carrier.
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the amylose derivative being coated on a porous inorganic carrier or a porous organic carrier.</description><edition>7</edition><language>eng</language><subject>CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC CHEMISTRY ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES</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&date=20041216&DB=EPODOC&CC=US&NR=2004254174A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20041216&DB=EPODOC&CC=US&NR=2004254174A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GALBRAITH KIMM B</creatorcontrib><creatorcontrib>PERRIN SCOTT R</creatorcontrib><creatorcontrib>YE NAIDONG</creatorcontrib><title>Method for isolating (R)-tofisopam</title><description>(R)-tofisopam, substantially free of the (S)-enantiomer of tofisopam, is obtained by separating the enantiomers of tofisopam by chromatography employing a chiral separation medium comprising (i) (2S)-2-{(1S)[(3,5-dinitrophenyl)carbonylamino]phenylmethyl}-3,3-dimethylbutanoate, covalently bound to silica through an alkylene ester linkage or (ii) an amylose derivative of formula I: wherein each R and n are defined herein; 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title	Method for isolating (R)-tofisopam
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