Process for the preparation of N-Carboxy-t-Leucine anhydride
Process for the preparation of N-carboxy-t-leucine anhydride in which the corresponding N-carboxy-t-leucine is subjected to a cyclization with the aid of an acyl halogenide. Preferably, acetyl chloride is used as acyl halogenide. The N-carboxy-t-leucine anhydride obtained optionally is subsequently...
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| creator | ZWAAN, WILHELMUS HOF, ROBERT PATRICK |
| description | Process for the preparation of N-carboxy-t-leucine anhydride in which the corresponding N-carboxy-t-leucine is subjected to a cyclization with the aid of an acyl halogenide. Preferably, acetyl chloride is used as acyl halogenide. The N-carboxy-t-leucine anhydride obtained optionally is subsequently converted into a t-leucine-N-substituted amide with the aid of the corresponding amine. Preferably, methyl amine is chosen as the amine, and the reaction is carried out in a mixture of water and methanol as solvent. |
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Preferably, acetyl chloride is used as acyl halogenide. The N-carboxy-t-leucine anhydride obtained optionally is subsequently converted into a t-leucine-N-substituted amide with the aid of the corresponding amine. Preferably, methyl amine is chosen as the amine, and the reaction is carried out in a mixture of water and methanol as solvent.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2003</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=20030730&DB=EPODOC&CC=EP&NR=1153923B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25568,76551</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030730&DB=EPODOC&CC=EP&NR=1153923B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZWAAN, WILHELMUS</creatorcontrib><creatorcontrib>HOF, ROBERT PATRICK</creatorcontrib><title>Process for the preparation of N-Carboxy-t-Leucine anhydride</title><description>Process for the preparation of N-carboxy-t-leucine anhydride in which the corresponding N-carboxy-t-leucine is subjected to a cyclization with the aid of an acyl halogenide. Preferably, acetyl chloride is used as acyl halogenide. The N-carboxy-t-leucine anhydride obtained optionally is subsequently converted into a t-leucine-N-substituted amide with the aid of the corresponding amine. Preferably, methyl amine is chosen as the amine, and the reaction is carried out in a mixture of water and methanol as solvent.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2003</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAJKMpPTi0uVkjLL1IoyUhVKChKLUgsSizJzM9TyE9T8NN1TixKyq-o1C3R9UktTc7MS1VIzMuoTCnKTEnlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgGGhqbGlkbGTobGRCgBAFrYLvw</recordid><startdate>20030730</startdate><enddate>20030730</enddate><creator>ZWAAN, WILHELMUS</creator><creator>HOF, ROBERT PATRICK</creator><scope>EVB</scope></search><sort><creationdate>20030730</creationdate><title>Process for the preparation of N-Carboxy-t-Leucine anhydride</title><author>ZWAAN, WILHELMUS ; HOF, ROBERT PATRICK</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1153923B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2003</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>ZWAAN, WILHELMUS</creatorcontrib><creatorcontrib>HOF, ROBERT PATRICK</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZWAAN, WILHELMUS</au><au>HOF, ROBERT PATRICK</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for the preparation of N-Carboxy-t-Leucine anhydride</title><date>2003-07-30</date><risdate>2003</risdate><abstract>Process for the preparation of N-carboxy-t-leucine anhydride in which the corresponding N-carboxy-t-leucine is subjected to a cyclization with the aid of an acyl halogenide. Preferably, acetyl chloride is used as acyl halogenide. The N-carboxy-t-leucine anhydride obtained optionally is subsequently converted into a t-leucine-N-substituted amide with the aid of the corresponding amine. Preferably, methyl amine is chosen as the amine, and the reaction is carried out in a mixture of water and methanol as solvent.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY |
| title | Process for the preparation of N-Carboxy-t-Leucine anhydride |
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