http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109232609-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-34 |
| filingDate | 2018-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109232609-B |
| titleOfInvention | Method for preparing high-purity cefpodoxime proxetil |
| abstract | The inventionDisclosed is a method for preparing high-purity cefpodoxime proxetil, comprising: under the action of carbonate and alkaline ionic liquid, cefpodoxime acid and iodoester react in an organic solvent, and the cefpodoxime proxetil is obtained through post-treatment after the reaction is finished. The cefpodoxime proxetil product obtained by the method has less than 3 percent of total impurities and delta 3 Less than 1.5 percent of isomer (total impurities are less than 4 percent according to EP7.0 and less than 6 percent according to USP 35), good product stability, high yield, high molar yield of 78.3 to 83.7 percent, simple operation and suitability for industrial production. |
| priorityDate | 2018-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.