http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102531940-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e9a0b57b74345cf22e3c542f53331ae1 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-58 |
| filingDate | 2011-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f3fe3992fa71fb40781279880ff22c4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e954d652fa2ef66decfd5bec7196db4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e48c9ee39d84f7a0524086e903b3825 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ba167533b72ddc38e575fd753462fea |
| publicationDate | 2014-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102531940-B |
| titleOfInvention | Preparation method for high purity etofenamate |
| abstract | The invention relates to a preparation method for high purity etofenamate. Flufenamic acid reacts with diethylene glycol in non-protic organic solvent in the presence of an organic carboxylic acid activating agent (R*-Cl) such as chlorosilane and sulfonyl chloride, reactant is hydrolyzed under the acidic condition and then extracted and separated simply to obtain high purity etofenamate. Compared with the prior art, the preparation method for the high purity etofenamate has the advantages of being less in equipment investment and reaction steps, easy to operate, high in productivity and product purity and the like and has wide application prospects. |
| priorityDate | 2011-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 120.