http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002120138-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D215-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-56 |
| filingDate | 2002-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7c6bf85bdaca6452b24b74f8cdb10ef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c269ca0caa095d1ca9ebe7ed0a6488e7 |
| publicationDate | 2002-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2002120138-A1 |
| titleOfInvention | Process for the preparation of fluoroquinolonecarboxylic acids |
| abstract | Fluoroquinolonecarboxylic acids can be prepared by hydrolysis of the corresponding C 1 -C 4 -alkyl esters with addition of water, acetic acid, and sulfuric acid using a drastically reduced amount of sulfuric acid if, relative to 1 mol of C 1 -C 4 -alkyl fluoroquinolonecarboxylate, less than 30 g of sulfuric acid are employed, the reaction mixture is heated to reflux for 0.5 to 8 hours, then a mixture of acetic acid, C 1 -C 4 -alkyl acetate, C 1 -C 4 -alkyl alcohol, and optionally water is distilled off, and finally the fluoroquinolonecarboxylic acid prepared is isolated. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006058528-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7220861-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004056781-A1 |
| priorityDate | 2001-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 97.