http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IE-821546-L
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2ca2e4410855da087e11bf3eea8933fa |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-00 |
| filingDate | 1982-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1982-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IE-821546-L |
| titleOfInvention | Preparation of desacetoxycephalosporanic acid |
| abstract | Process for preparing 7-ADCA and 7-(N,N-disubstituted)aminodesacetoxycephalosporins which comprises reacting 7-ACA or an N,N-disubstituted derivative thereof with a tri-(C1-C6 alkyl)silane in a highly acidic organic acid, e.g. trifluoroacetic acid, with a Lewis acid, preferably boron trifluoride, at a temperature of 20 DEG C. to 100 DEG C. E.g., 7-ADCA is readily prepared in high yield, is purified by isoelectric precipitation, and is useful for preparing cephalexin.n[US4346219A] |
| priorityDate | 1981-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.