http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112724062-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-273 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P25-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P25-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-273 |
| filingDate | 2021-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112724062-B |
| titleOfInvention | Preparation method of oxiracetam impurity B |
| abstract | The invention provides a preparation method of oxiracetam impurity B. The preparation method of the oxiracetam impurity B comprises the following steps: and carrying out aminolysis reaction on the 2-oxo-pyrrolidine caprolactone and glycinamide to obtain oxiracetam impurity B. The preparation method of the oxiracetam impurity B has the advantages of short synthesis route, high product yield and low cost. |
| priorityDate | 2021-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.