| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_07b71571160c289fbf5fc680dfea513f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J41-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J75-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J73-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N9-99 |
| filingDate |
2001-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2004-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98869184d225640cf7b42622ade28eb4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27cd60a44816e71d1cbe30fc19929d1b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec9fdf45892db8d077364fb2822c08f9 |
| publicationDate |
2004-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6794508-B2 |
| titleOfInvention |
Process |
| abstract |
An improved process for preparing steriods, such as 3-oxo-4-azasteroids, is described. Compounds of this type are known to be useful in the preparation of compounds having 5a-reductase inhibitor activity. The process comprises the hydrogenation of the corresponding steroid alkene in the presence of ammonium acetate, ammonium formate, and/or ammonium propionate and an appropriate catalyst. |
| priorityDate |
2000-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |