| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_114e4423ec77cbc8dab9d0a98909704e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-466
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D281-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D281-10 |
| filingDate |
2002-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd228266580657bdbe06f5580067d95f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84bbf81ae9ced125a70d8f45cb00cec5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2266879d1fef83979336907de4470c7f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61f946b05ac4d26f7fb4b84410103f90 |
| publicationDate |
2004-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2004127704-A1 |
| titleOfInvention |
Process for preparing diltiazem using a heterogeneous trifunctional catalyst |
| abstract |
The present invention comprises a simplified synthesis of (+)-diltiazem through IE-PdOsW wherein IE is ion-exchanger, catalyzed three-component coupling reaction and Fe 3+ -exchanged clay catalyzed ring opening of sulfite with 2-aminothiophenol followed by cyclization as key steps. |
| priorityDate |
2002-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |