http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0636139-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_058e0be30e00d53858c67167df60aed5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J7-0085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C401-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J71-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-645 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P33-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C401-00 |
| filingDate | 1993-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1999-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_759494ecfdef5ffbaae2c5390aadda7b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_521c38c331f3cfc160ac9fbd528a0128 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f55433993c8cb47eaf31f34bb1be5018 |
| publicationDate | 1999-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0636139-B1 |
| titleOfInvention | Isolation of steroids containing a 5,7-diene functionality from a sterol mixture |
| abstract | A method is provided for isolating 5,7-diene-containing steroids, particularly 3 beta -ols and esters of 3 beta -ols, from a sterol mixture. The method involves (1) treating the mixture with a dienophile or with an oxidizable dienophile precursor in combination with an oxidizing agent so as to provide a Diels-Alder adduct of the 5,7-diene to be isolated, followed by (2) removal of the adduct from the mixture and (3) regeneration of the 5,7-diene with a suitable reducing agent. The invention also encompasses subsequent purification steps and intermediate modification of the Diels-Alder intermediate, e.g., wherein chemical conversion of the Diels-Alder adduct is effected prior to regeneration of the 5,7-diene. Novel compounds which are Diels-Alder adducts of 5,7-diene-containing steroids are provided as well. |
| priorityDate | 1992-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 150.