http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104072496-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-10 |
| filingDate | 2013-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104072496-B |
| titleOfInvention | The preparation method of a kind of Guan-fubase A and salt thereof |
| abstract | The present invention provides the preparation method of a kind of Guan-fubase A and salt thereof. The method adopts acid extraction to purify the technique combined with cation-adsorption resin, impurity is removed again with organic acid precipitation, recrystallization obtains Guan-fubase A and salt thereof, and the method comprises the steps: step 1 specifically: gets Typhoniun Tuber medicinal material acid extraction, obtains extracting solution A; Step 2: extracting solution A carries out purifying by resin cation (R.C.), obtains purified step 3: purified step 2 obtained adds organic acid, precipitation, and taking precipitate carries out alkalinisation treatment and obtains Guan-fubase A crude product; And step 4: the Guan-fubase A crude product that step 3 obtains carries out recrystallization. The method improves the content of Guan-fubase A in product fast, greatly shortens crystallizing cycle. |
| priorityDate | 2013-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 74.