http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107056753-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D401-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D401-12 |
| filingDate | 2017-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107056753-B |
| titleOfInvention | A kind of Lansoprazole crude product refining method |
| abstract | The invention discloses a kind of Lansoprazole crude product refining methods.This method is cooling after crude product is first dissolved, decolourized, solid is obtained by filtration, obtained solid carries out freezing crystallization processing in propylene oxide/tetrahydrofuran/methylene chloride in the mixed solvent, and gained crystal obtains Lansoprazole highly finished product after filtration, washing and drying.This method can obtain the Lansoprazole highly finished product of high yield and extremely low impurity by single treatment, not aqueous and ethyl alcohol solvate in Lansoprazole highly finished product obtained, yield can achieve 83%~88%, purity is not less than 99.76%, and impurity sulfide and sulfone content are respectively lower than 0.07% and 0.14%. |
| priorityDate | 2017-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.