http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1073663-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e83d93ed02bbd6159e99b5a7796e3686 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D499-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-00 |
| filingDate | 1999-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c238623236da9d8da0c24d8b71c95f63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5f4266f2f8cbfc5713185e76963071c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c0eba5a505770278f934dc7b085a184 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d62a61d17f65affee8d403cd44666e4 |
| publicationDate | 2001-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1073663-A1 |
| titleOfInvention | Preparation of beta-lactam antibiotics in the presence of urea or amide |
| abstract | A process to prepare a crystalline β-lactam compound by the addition of a base to an acidic solution of a β-lactam compound obtained by the addition of an acid to a solution or suspension of a β-lactam compound obtained by (a) an acylation reaction of 6-amino-penicillanic acid, 7-amino-cephalosporanic acid, 7-amino-3'-desacetoxycephalosporanic acid or 3-chloro-7-aminodesacetoxydesmethylcephalosporanic acid or derivatives thereof with a mixed-anhydride of the Dane salt of any one of the compound comprising D-phenyl-glycine, D-p-hydroxyphenyl-glycine, D-2(1,4-cyclohexadien-1-yl)glycine or (2-aminothiazol-4-yl)-(2-methoxy-imino-acetic acid) in one or more organic solvents, or (b) dissolving or suspending a crude β-lactam compound in a solution comprising water and/or one or more organic solvents, wherein, to the solution or suspension of a β-lactam compound, urea or derivatives thereof and/or amide or derivatives thereof are added. |
| priorityDate | 1998-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 152.