http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2123629-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c999fee6428152a996011d506925c2d7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B57-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B63-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D265-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B57-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-22 |
| filingDate | 2008-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_924adb04199c475239d31d69c03f6765 |
| publicationDate | 2009-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2123629-A1 |
| titleOfInvention | Method for purifying 4-hydroxyisoleucine |
| abstract | The present invention aims to provide a method of conveniently isolating and purifying as well as separating and removing (2S,3R,4S)-4-hydroxyisoleucine at a high purity and in a high yield. Specifically, the present invention discloses a purification method of (2S,3R,4S)-4-hydroxyisoleucine or a chemically acceptable salt thereof, which includes the following steps (a), (b) and (c): n(a) a step of reacting (2S,3R,4S)-4-hydroxyisoleucine or a chemically acceptable salt thereof in a mixture with an aldehyde compound represented by the formula: Q-CHO wherein Q is an aryl group having a carbon number of 6 to 14, an alkyl group having a carbon number of 1 to 10, a cycloalkyl group having a carbon number of 3 to 10 or a 5- to 10-membered heterocyclic group, each of which optionally has substituent(s), or an equivalent form thereof to give a compound represented by the formula (1)n nwherein Q is as defined above, n(b) a step of extracting the compound represented by the formula (1) with an organic solvent, and n(c) a step of converting the compound represented by the formula (1) to (2S,3R,4S)-4-hydroxyisoleucine or a chemically acceptable salt thereof. |
| priorityDate | 2007-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 944.