http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106892918-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-14 |
| filingDate | 2017-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106892918-B |
| titleOfInvention | A kind of new method preparing Rutaecarpine from evodia rutaecarpa |
| abstract | The present invention provides a kind of to prepare the new method of Rutaecarpine from evodia rutaecarpa, it is characterized in that: take dry raw material powder, solvent (such as methanol, ethyl alcohol, isopropanol, acetone, chloroform, methylene chloride, ethyl acetate is added, or their mixed solvent, or the aqueous solution of methanol, ethyl alcohol, acetone) extract, recycling design obtains medicinal extract；Medicinal extract is extracted with weak polar solvent (petroleum ether, pentane, hexane, hexamethylene, n-hexane, normal heptane or its mixed solvent), the recovered solvent concentration of extracting solution to certain volume, is filtered；Filter cake is taken, is crystallized with methylene chloride, chloroform, acetone, ethyl alcohol, ethyl acetate, isopropanol or their mixed solvent, obtains Rutaecarpine crude product；Rutaecarpine crude product carries out being recrystallized to give Rutaecarpine crystal.The Rutaecarpine purity is high of this method preparation, it is at low cost, it is easy to operate, and also yield is high, easy large-scale industrial production. |
| priorityDate | 2017-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.