http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5519153-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a717ea5b2ac78ac329ab3a9659d834d2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J7-0045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J53-002 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J71-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J7-00 |
| filingDate | 1995-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1996-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee8bab4a6ab4f54f3a1f562be6706541 |
| publicationDate | 1996-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5519153-A |
| titleOfInvention | Medrogestone production |
| abstract | A process for the production of 6,17α-dimethylpregna-4,6-diene-3,20-dione which comprises isolating 3β,5α, 6β-trihydroxy- 6α,17α- dimethylpregnan-20-one monomethanolate from the solution of a Grignard reaction product of 3β,5α-dihydroxy -17α-methyl-17β-carbomethoxyandrostane-6-one and a methylmagnesium halide by solvent displacement with methanol; oxidizing the monomethanolate to the 3,20-dione; dehydrating the said 3,20-dione to the 4-ene-3,20-dione; dehydrating the 4-ene-3,20 dione; removing a 6-methylene-4-ene-3,20-dione byproduct and isolating the desired product. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006178520-A1 |
| priorityDate | 1994-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 116.