| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J31-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J1-0059
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J43-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J31-006 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J43-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 |
| filingDate |
2012-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2017-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-104066744-B |
| titleOfInvention |
Process for preparing 17-substituted steroids |
| abstract |
The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of synthesizing abiraterone or derivatives thereof in high yield and purity by means of a key 3-formate intermediate. |
| priorityDate |
2011-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |