http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1289521-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J1-0059 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J7-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J7-0045 |
| classificationIPCInventive | 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/C07J1-00 |
| filingDate | 1969-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1289521-A |
| abstract | 1289521 11#-Chloro-19-nor-steroids GLAXO LABORATORIES Ltd 12 Jan 1970 [23 Jan 1969] 3971/69 Heading C2U 9α - Unsubstituted - 11# - chloro - 19 - norsteroids are prepared from the corresponding 11α-hydroxy steroids and a source of positive chlorine in an inert solvent, an anhydrous form of sulphur dioxide being present or added subsequently. A novel product is 11#-chloro-17α- hydroxy - 19 - nor - pregna - 4,6 - diene - 3,20- dione. Preferred chlorine sources are cyclic or acyclic N-chloro-amides, -imides or -hydantoin, particularly N-chloro-succinimide. An alkali metal hyposulphite may be used to produce sulphur dioxide in situ. Specification 1,202,521 is referred to. |
| priorityDate | 1969-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.