http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2599498-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_afaa0efd2bd3638a277550873b8e2b65 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D295-088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D401-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D295-088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-28 |
| filingDate | 2006-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_015d07fff8fff6f3efa0af1ee1d135a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8b11ea67b34be56a333b3e541df90d7 |
| publicationDate | 2011-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2599498-C |
| titleOfInvention | Pyroglutamate salts and their use in the optical resolution of intermediates for the synthesis of dextrocetirizine and levocetirizine |
| abstract | The present invention relates to (S)-2-[4-(4-chlorobenzhydryl)piperazin-1-yl]-ethoxyacetamide - (S)-pyrrolidone-5-carboxylic acid salt; (R)-2-[4-(4-chlorobenzhydryl)piperazin-1-yl]-ethoxyacetamide - (S)-pyrrolidone-5-carboxylic acid salt; (S)-2-[4-(4-chlorobenzhydryl)piperazin-1-yl]-ethoxyacetamide - (R)-pyrrolidone-5-carboxylic acid salt; or (R)-2-[4-(4-chlorobenzhydryl)piperazin-1-yl]-ethoxycetamide - (R)-pyrrolidone-5-carboxylic salt. The present invention relates also to a process for preparing (S)-2-[4-(4-chlorobenzhydryl)piperazin-1-yl]-ethoxyacetamide (I) and (R)-2-[4-(4-chlorobenzhydryl) piperazin-1-yl]-ethoxyacetamide (II) by chemical resolution of a mixture. These compounds are respectively intermediates for the synthesis of dextrocetirizine and levocetirizine. |
| priorityDate | 2005-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.