http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-728936-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 | 1952-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1955-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-728936-A |
| titleOfInvention | Steroid compounds |
| abstract | The invention comprises compounds of the formula <FORM:0728936/IV (b)/1> wherein AcO is an acyloxy group, Ac being the radical of an organic carboxylic acid, preferably, containing from one to eight carbon atoms, and the preparation thereof by heating together 11a -hydroxy- or an 11a -acyloxy-pregnane-3,20-dione and an acylating agent, e.g. acid chlorides or acid anhydrides. The reaction may be effected between 100 DEG and 200 DEG C. in the presence of an acid catalyst, e.g. p-toluene-sulphonic acid or sulphuric acid. Examples disclose the use of acetic, propionic and heptanoic anhydrides. 11a -Acyloxypregnanes are obtained by treating 11a -hydroxypregnane with an acid anhydride at room temperature. 11a -Hydroxypregnane is obtained by the hydrogenation of 11a -hydroxyprogesterone in the presence of a palladium charcoal catalyst. Specification 724,094 is referred to. |
| priorityDate | 1951-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.