| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-02
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/C07D501-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-18 |
| filingDate |
1993-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c04f3318a34fccfe55591db64d039d45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_897cafef10adc2765fbcd9d113daa696
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21286fcdad9e287f2aa22fff1c9ac63f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50f379507d81fc974a480d9ffc40ece0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15378a6a1ee4216d1da8ed4ba94c7bd9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9c90541b91feacf0945cd5a6404c4f7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_602d2c54479c360320a1c7e2dc1a56cc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b794e0c2f00d1da31bfd5bfdc0c36541
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e22fe0b64079073faa730cdf3160218a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_942ff7de4542f7284ec6c22c116387f9 |
| publicationDate |
1998-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0570849-B1 |
| titleOfInvention |
Process for the cleavage of cephalosporin prodrug esters to 7-amino-3-methoxymethylceph-3-em-4-carboxylic acid |
| abstract |
The present invention relates to a process for the preparation of 7-amino-3-methoxymethylceph-3-em-4-carboxylic acid (I) from 7-amino-3-methoxymethylceph-3-em-4-carboxylic acid esters (II) or their salts by ester cleavage. The process is characterised in that the compound II is treated with formic acid, trifluoroacetic acid, methanesulphonic acid or trifluoromethanesulphonic acid or a mixture of two of these acids in each case. |
| priorityDate |
1992-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |