http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3606665-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43f5f30aaaa441ef7912f89f06357b42 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-20 |
| filingDate | 1986-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cbc7c55261bc1215cfdedf381a18fce |
| publicationDate | 1986-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3606665-A1 |
| titleOfInvention | METHOD FOR PRODUCING VINCAMINE |
| abstract | The invention relates to a semisynthetic process for the preparation of vincamine, starting from tabersonine, which includes the following stages: hydrogenation of tabersonine in solution with anhydrous Raney nickel to give vincadifformine, preparation of the vincadifformine salt with an acid, oxidation of the vincadifformine salt with an anhydrous mixture, which is solid at room temperature, of maleic acid and permaleic acid having a peracid content of 40 to 50 %, rearrangement of the oxidised compound by heating for 2 to 4 hours at 30 to 50 DEG C to give vincamine, and isolation of the vincamine by precipitation with ammonia. |
| priorityDate | 1985-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.