| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2ca2e4410855da087e11bf3eea8933fa |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P31-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P31-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-59
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-546
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-545 |
| filingDate |
1974-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1976-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
ES-427235-A1 |
| titleOfInvention |
A PROCEDURE FOR THE PREPARATION OF 3-FLUOCEPHALOSPORI- NAS. |
| abstract |
An ester of a 7-acylamido-3-fluoro-3-cephem-4-carboxylic acid is prepared by reacting a 3-sulfonate ester of an ester of a 7-acylamido-3-hydroxy-3-cephem-4-carboxylic acid in an inert solvent with an inorganic fluoride in the presence of an 18-crown-6 ether and at a temperature of from about -20 DEG C. to about +25 DEG C. |
| priorityDate |
1974-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |