| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_27a71ddaaa2f5a8c228fc6cb3f3b3098 |
| 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/C12N9-99
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J73-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 |
| filingDate |
2001-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1da6e697ee8cd0c3f6d63e370f5db1df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ada0d06a99f16d0aef514d84d31a792b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59a891ec12198b5223fc81886aa6afee |
| publicationDate |
2002-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2427709-A1 |
| titleOfInvention |
Process for the preparation of 5.alpha.-reductase inhibitors |
| abstract |
An improved process for preparing steroids, 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 |