| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c163c101399a77181408b93dc02fe00d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-59 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-59
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-04 |
| filingDate |
1992-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c97d68d5aa326b67cc3f061af0e3e34a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ce0bdfdd0044a44ef8e749867593c44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7046999fa0386072bc5cb72e70474eb7 |
| publicationDate |
1993-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5229509-A |
| titleOfInvention |
Process for the preparation of 3-chloro-cefem compounds |
| abstract |
The process comprises a series of stages essentially comprising the protection of the functional groups of the side chain of Ampicillin, esterification of the acid group, oxidation to sulphoxide, expansion of the thiazole ring to a thiazine ring, ozonolysis of the exomethylene cefam derivative obtained, substitution of the hydroxyl group by chlorine and de-protection of the functional groups, in which the order of some stages can be varied without affecting the final result. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5578721-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5604222-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5750682-A |
| priorityDate |
1989-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |