| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9b4f16ad70ddfeb0b838c113aaae408a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-94 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-94 |
| filingDate |
2007-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e281536d0b4fc5374dfb2d4e10ab0d3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86f298c66882cff926861cd940ead4a4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e5bab717c146bf4f745b62b5b652902
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e80107e622dc5b02541d1931f76e81b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae913d1fe3e4f1d66f0e8401fe017726 |
| publicationDate |
2014-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
ES-2492645-T3 |
| titleOfInvention |
An improved procedure for the preparation of erlotinib hydrochloride |
| abstract |
A process for the preparation of erlotinib substantially free of N-methoxyethyl impurity, namely N- [(3-ethynylphenyl) - (2-methoxyethyl)] - 6,7-bis (2-methoxyethoxy) -4-quinazolinamine, or a of its pharmaceutically acceptable salts, which comprises isolating erlotinib or a pharmaceutically acceptable salt of erlotinib from a solvent medium comprising dimethylsulfoxide and an alcoholic solvent. |
| priorityDate |
2007-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |