http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-879101-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/C07J1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J75-00 |
| 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-879101-A |
| titleOfInvention | Improvements in or relating to cyclopentanophenanthrene compounds and process for the manufacture thereof |
| abstract | The invention comprises compounds of the formula:- <FORM:0879101/IV (b)/1> wherein R1 is hydrogen or a hydrocarbon carboxylic acyl group of 2 to 12 carbon atoms, R2 is hydrogen or a lower alkyl group of 1 to 6 carbon atoms, R3 is hydrogen when R2 is a lower alkyl group or R3 is hydrogen or a hydrocarbon carboxylic acyl group of 2 to 12 carbon atoms when R2 is hydrogen, R4 is lower alkyl, and X is a double bond or the C4-5 linkage of an allo compound, together with their preparation by alkali metal double hydride reduction of the corresponding 3-keto compounds, e.g. with sodium borohydride followed by esterification if required. Examples detail the preparation of 2a -methyl-19-nor androstane-3,17b -diol, its \D4 derivative and their 2a ,17a -dimethyl analogues. Specifications 853,291 and 854,407 also are referred to. Reference has been directed by the Comptroller to Specification 809,485. |
| 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: 22.