| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_81075572b8d1526ce20dbf5dd7dbded8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D403-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P9-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-4184
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C13-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D403-10 |
| filingDate |
2006-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d221df4935b690c13ae6f286fd590cf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ab1f7dd8e2539f6b6242947462b27af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38aeeb230d3d120cf39930eb54283267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c58971a154f95b37fee0bc01f3cf1913
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9be7d84f5a5e4e66cf6d8151a6e7099 |
| publicationDate |
2007-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2604404-A1 |
| titleOfInvention |
An improved process for preparation of irbesartan |
| abstract |
A process for the preparation of Irbesartan of formula (I): Formula (I) comprising the steps of: (i) reacting 4' aminomethyl-2-cyano biphenyl of formula (VI) with 1-veleramido cyclopentane carboxylic acid of formula (V): Formula (VI) & Formula (V) in an organic solvent and in the presence of an acid, without activating the -COOH group of compound of formula (V) to give 1-(2'cyanobiphenyl-4-yl-methylaminocarbonyl)-1-pentanoylamino cyclopentane of formula (VII). Formula (VII) converting the compound of formula (VII) obtained in step (i) to Irbesartan of formula (I) by reacting the compound of the formula (VII) with tributyl tin azide in o-xylene to give Irbesartan of formula (I). |
| priorityDate |
2005-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |