| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65613 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6561 |
| filingDate |
1973-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1976-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfa395b21551d9e20303ccbfb56a99d8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a16a0908da029bfb78c4345fd1ff424
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_572a6458f9fce1f26f36f9d1a128d533 |
| publicationDate |
1976-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3998817-A |
| titleOfInvention |
Process for producing cephalosporanic acid derivatives |
| abstract |
Novel penicillin derivatives of the formula (I) ##STR1## wherein R 1 represents a lower alkyl group and R 2 represents an ester protective group, as hereinafter defined and 7-amino-3-desacetoxycephalosporanic acid derivatives of the formula (II) ##STR2## wherein R 1 represents a lower alkyl group and R 2 represents an ester protective group, which are useful as precursors for the production of cephalosporin derivatives, and an improved process for producing cephalosporin derivatives of the formula (II) above and the formula (III) ##STR3## wherein R 2 is an ester protective group, are disclosed. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4503220-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4189573-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4043991-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4112086-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4145540-A |
| priorityDate |
1972-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |