| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2a5476ab1952a068ab04ae5ce456be0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_42468f38bb7662a05874bde0800412a5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-13 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J7-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-323 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-00 |
| filingDate |
2019-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dddba3bc58ea3ad18189773c26fd4b1f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c2c848dd6d4b062c2b5e694c08680b3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea04cdbb7a11439ba8f73e4e143fc077 |
| publicationDate |
2020-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10711030-B2 |
| titleOfInvention |
Process for the preparation of allopregnanolone |
| abstract |
A method for the purification of allopregnanolone is disclosed. Allopregnanolone prepared from isopregnanolone contains impurities such as triphenylphosphine oxide and other unknown impurities. To remove these impurities and purify allopregnanolone, the allopregananolone is dissolved in acetonitrile, and crystallized from the acetonitrile. The resulting crystallized allopregnanolone may then be re-crystallized from acetonitrile to further purify the allopregnanolone. |
| priorityDate |
2018-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |