| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0ddb9f3656270bc5410be3679322fead |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P9-12 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-42 |
| filingDate |
2002-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76c16123b3822661a07d1a127dd29a48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b537639d60e7e2573fd57682913f780
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5dd25f22113e6e6197dbb034b76c8912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56965140f962b382666cc605a430483e |
| publicationDate |
2004-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1284957-A4 |
| titleOfInvention |
PURIFICATION PROCEDURE OF N- (1 (S) -ETHOXYCARBONYL-3-PHENYLPROPYL) -L-ALANINE |
| abstract |
The present invention is to provide a purification method of obtaining N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine of high quality in good yield with high productivity, which is accordingly suited for commercial scale application. An impurity-contaminated N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine is crystallized from a mixed solvent of alcohol and water in a volume ratio of alcohol/water being 1 to 20 to remove a contaminating impurity into a mother liquor and give crystals of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine. |
| priorityDate |
2001-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |