| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8c646f75c4f7c6349f35c8fe01934921 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D305-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D305-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-22 |
| filingDate |
1993-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f0a59c72d4460c27d9b1cc126f51663
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5443446370e6161e6227d1e64e8f7875
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fe2fad6148d26117382c4fe845b0c82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d2ae9e25d8f0eb7e90516b780979ec5 |
| publicationDate |
1994-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H06199751-A |
| titleOfInvention |
Method for producing L-(-)-carnitine from configurational isomer by-product |
| abstract |
(57) [Summary] [Object] The present invention uses L-(-)-carnitine, which is the configuration opposite to that of L-(-)-carnitine, as a starting compound to produce L-(-)-carnitine. It provides a method. [Structure] A salt of D-(+)-carnitine (1) is hydrolyzed to obtain D-(+)-carnitine (2), which is esterified to an ester (3) to give an acyl represented by the formula RY. An agent, an organic base and a basic solvent or at least 1 By reacting in an inert organic solvent of 0 to 50 ° C. for 1 to 24 hours to acylate the acyl derivative (4) and convert the COR 1 group of the acyl derivative (4) to a carboxyl group. To give acyl D-(+)-carnitine (5), which is treated with L in the basic environment. By lactonizing-(-)-carnitine to the lactone (6) and treating (6) in a basic solution, L D-(+)-characterized in that it is converted into-(-)-carnitine and L-(-)-carnitine inner salt is isolated. A method for producing L-(-)-carnitine from carnitine amide. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009067809-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003506429-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013535440-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013136635-A |
| priorityDate |
1992-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |