http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-729221-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c902faf6ae746c51fc8010672fc22894 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J5-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 |
| filingDate | 1952-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1955-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-729221-A |
| titleOfInvention | Steroid |
| abstract | The invention comprises 4-pregnene-3,6,11,20-tetraone and the preparation thereof by reacting 6,11-dihydroxyprogesterone with more than one equivalent (preferably about two equivalents) of oxidizing agent per mol. of 6,11-dihydroxyprogesterone for a time sufficient to convert to keto the 6- and 11-hydroxy groups without similar conversion elsewhere in the molecule. Suitably, potassium permanganate, N-bromacetamide in t.-butanol, or chromic acid may be used as oxidant. |
| priorityDate | 1952-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.