| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1394e66eb648f9bf0a1f5507fe25b67b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-475
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P35-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-475
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P35-00 |
| filingDate |
2001-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4907ee2d1ad8c4e62562bf5c06805da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0404588a4461b8dbe7f1703f605c1f71
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_791b8eb46540ec87ded81845658bd3b3 |
| publicationDate |
2004-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1270579-A4 |
| titleOfInvention |
PROCESS FOR THE PRODUCTION OF CAMPTOTHECIN |
| abstract |
A process for economically producing a large amount of camptothecin which is the starting compound for irinotecan hydrochloride and various camptothecin derivatives, characterized by involving the following steps (a) and (b): (a) the step of hydrolyzing 9-methoxycamptothecin or a natural material containing 9-methoxycamptothecin; and (b) the step of converting the 9-hydroxycamptothecin obtained in the step (a) into a 9-o-perfluoro(lower alkyl)sulfonyl or 9-o-phenyltetarzolyl derivative followed by the hydrogenolysis into camptothecin. |
| priorityDate |
2000-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |