http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103772465-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J9-00 |
| filingDate | 2014-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103772465-B |
| titleOfInvention | A kind of preparation method of high purity Hyodeoxycholic Acid |
| abstract | The invention discloses a kind of preparation method of high purity Hyodeoxycholic Acid, comprise: get raw material, add highly basic, water, saponification 16-24h at 95-100 DEG C, be chilled to room temperature, leave standstill, siphon goes out supernatant liquor and discards, lower floor's paste adds water stirring and dissolving, add strong acid and be acidified to congo-red test paper change indigo plant, add ethyl acetate and stir extraction 20-50min, stratification, aqueous phase discards, ethyl acetate is added and is washed to aqueous phase pH=6-7, ethyl acetate is added to anhydrous sodium sulfate dehydration, activated carbon decolorizing, filter, be concentrated into Precipitation, cooling, filter or squeezing, vacuum-drying, add alcoholic solvent, stirring and dissolving, slowly add alkali organic solvent and stir, cooling, has a large amount of Precipitation, filtration drying, add water, sodium hydroxide, stirring and dissolving, drip volume ratio 1:1 hydrochloric acid, stir, filter, dry Hyodeoxycholic Acid.Object of the present invention provides a kind of technique simple, and product yield is high, the preparation method of the Hyodeoxycholic Acid that purity is high. |
| priorityDate | 2014-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.