http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-879100-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7780e9d205ef3d354fe484bbc65b155c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J1-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J1-00 |
| filingDate | 1957-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1961-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-879100-A |
| titleOfInvention | Improvements in or relating to cyclopentanophenanthrene compounds and process for the manufacture thereof |
| abstract | The invention comprises 2a -lower alkyl-19-nor-D 4-androstan-17b -o1-3-ones, their 17a -lower alkyl derivatives and also the corresponding 3-hydroxy compounds together with a process for the preparation of the corresponding D 4-androstene compounds by treating 19-nortesttosterone or a 17a -lower alkyl derivative thereof with ethyl formate to form the corresponding 2-hydroxymethylene derivative, reacting the latter with a lower alkyl iodide and then eliminating the carbon monoxide from the resulting 2-formyl-2-lower alkyl compound by means of activated alumina. Detailed examples illustrate the preparation of 2a -methyl-19-nor-D 4-androsten-17b -ol-3-one, its 2a -ethyl-, 2a ,17a -dimethyl-, 2a -methyl- 17a -ethyl-, 2a -ethyl- 17a -methyl-, and 2a ,17a -diethyl analogues and the corresponding 5a -androstanes and the 17-acetates, propionates, cyclopentylpropionates and benzoates of the 17a -unsubstituted compounds. Specifications 853,291, 854,407 and 879,102 are referred to. Reference has been directed by the Comptroller to Specification 809,485. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3355495-A |
| priorityDate | 1956-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.