http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109678779-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-448 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-448 |
| filingDate | 2019-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109678779-B |
| titleOfInvention | Refining method of SMCC |
| abstract | The invention relates to purification/refining of a compound, and particularly discloses a refining method of SMCC. According to the refining method, the crude SMCC product containing the impurity shown in the formula II obtained by chemical synthesis is recrystallized by adopting acetonitrile as a solvent, so that the purity of the SMCC is improved, and the content of the impurity is effectively reduced. The invention further obtains a more excellent effect by controlling the consumption of acetonitrile in the recrystallization process, and obtains a high-purity SMCC product with the purity of not less than 99.9 percent and the impurity content of less than 0.1 percent. |
| priorityDate | 2019-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.