http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8013151-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2ea17ba87480b776cce77451f86b25bb |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P25-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-10 |
| filingDate | 2005-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1a5cb22ab6995f3d42ff93eb5b3629d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74e70759e749b6bf888733c02442bd49 |
| publicationDate | 2011-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8013151-B2 |
| titleOfInvention | Process for the preparation of galanthamine hydrobromide |
| abstract | A process for the purification of galanthamine (I) comprising precipitation of galanthamine hydrobromide from a mixture of alkaloids obtained from a plant of the Amaryllidaceae family containing galanthamine, treatment of the hydrobromide with alkali, extraction and crystallization of galanthamine with a solvent of general formula (II), in which R 1 is hydrogen or methyl and R 2 is selected from n-butyl, isobutyl, sec-butyl and t-butyl. The resulting pure galanthamine can be conveniently used for the preparation of galanthamine hydrobromide. |
| priorityDate | 2004-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.