http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0133670-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D505-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D503-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D205-085 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D205-085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D503-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-59 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D505-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-02 |
| filingDate | 1984-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb8b18068503a0fc635176ae45fd6884 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69ebb12455e7f267f64a3d6ecc4b5863 |
| publicationDate | 1985-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0133670-A2 |
| titleOfInvention | Process for the preparation of 7-acylamino-3-hydroxy-cephem-4-carboxylic acids and 7-acylamino-3-hydroxy-1-dethia-1-oxacephem-4-carboxylic acids |
| abstract | The invention relates to a process for the preparation of 7-acylamino-3-hydroxy-cephem-4-carboxylic acids and 7-acylamino-3-hydroxy-1-dethio-1-oxacephem-4-carboxylic acids and their derivatives of the general formula (1) in which R 1 , R 'and X have the meaning given in the description, by reacting compounds of the general formula (4) with a compound of formula (5) in which R 2 and X have the meaning given and Y represents diazo (N 2 ) or hydrogen (H 2 ), in an inert solvent in the presence of a Lewis acid or protonic acid catalyst.n n n According to a variant of the process, compounds of the formula (4) are used with a compound of the formula (6) as described above, the triple bond of the intermediate compound thus formed hydrates and sets the compounds of the general formula (3) obtained for Y = hydrogen (for Y = diazo, the compounds of the general formula (2) are formed directly in a solvent with an azide and irradiate or heat in the presence of a catalyst the compound of formula (2) so that the compounds of general formula (1) are formed. |
| priorityDate | 1983-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 467.