http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107151246-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B57-00 |
| filingDate | 2016-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107151246-B |
| titleOfInvention | The preparation method of one kind (R)-praziquantel amine salt and levo-praziquantel |
| abstract | The present invention relates to the preparation methods and a kind of preparation method of levo-praziquantel of a kind of (R)-praziquantel amine salt, (R)-praziquantel amine salt is reacted with raceme praziquantel amine with chiral selectors in a solvent to be made, wherein, the chiral selectors are selected from one of (R)-brufen, (R)-naproxen, (R) -1- phenethyl sulfonic acid or a variety of.The present invention has many advantages, such as that raw material is easy to get, simple process, short preparation period, chiral selectors are stable, price is low and recycling is easy, is at low cost. |
| priorityDate | 2016-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.