| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a717ea5b2ac78ac329ab3a9659d834d2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65611
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D499-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6561
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-18 |
| filingDate |
1975-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9088b8cb9451227f1b5cee1b7228eaf7 |
| publicationDate |
1977-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4008226-A |
| titleOfInvention |
Intermediates for preparing semi-synthetic cephalosporins and processes relating thereto |
| abstract |
Phosphorylated penicillins and cephalsporins are described which are obtained by reacting a penicillin or cephalosporin with a trivalent or pentavalent phosphorus halide and treating the thus formed product sequently with an acid chloride, an alcohol and water to form a phosphorylated anhydride of a 6-aminopenicillanic acid or 7-aminocephalosporanic acid salt, respectively, and thereafter acylating the thus formed product and splitting off the carboxyl protective group to obtain the desired penicillin or cephalosporin compound. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4154927-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4112086-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4189573-A |
| priorityDate |
1972-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |