http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0548338-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f76f00972031256c5c9a5f583dfc3797 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-00 |
| classificationIPCInventive | 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/C07D501-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-26 |
| filingDate | 1992-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3401de134248df9d3bd6d8c84c6ecc27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8248b95f2fa887b0af2f5be705c49e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b8c4394004e6c7b56dc1b24ba4b5455 |
| publicationDate | 1993-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0548338-A1 |
| titleOfInvention | Process for the preparation of cephalosporin interconnections. |
| abstract | Process for the preparation of a compound of formula (I) in which R is a heterocyclic group containing at least one nitrogen atom with or without oxygen or sulfur and R1 and R2 are both hydrogen atoms or l one, a hydrogen atom and the other an acyl group; the process comprises the reaction of a compound of formula (II) in which R1 and R2 are both as defined above and in which, if necessary, any reaction group is protected by a group of appropriate protection, or a salt of said group, with a compound of formula (III): R-SH in which R is as defined above, or a salt of this substance, in the presence of an acid and a compound of formula (IV) in which R3 and R4 are both a C1-C4 alkyl group or else R3 and R4 considered together are a C2 or C3 alkylene chain and, if necessary, the protective groups optionally presents are removed. The compounds of formula (I) are used as intermediates in the synthesis of cefazolin and cefazedone. |
| priorityDate | 1991-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 169.