http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109879734-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e233a4bafba614d774a51c65843a059 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-203 |
| filingDate | 2017-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb9240ad9ac100e4e98db41338c25f13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04c084fc7a0728f9a891b50f81be8e4b |
| publicationDate | 2019-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109879734-A |
| titleOfInvention | A kind of preparation method and its usage of methyl heptenone extract |
| abstract | The present invention relates to natural medicine fields, and in particular to a kind of preparation method and its usage of methyl heptenone extract.Ginger supercritical fluid extract or Rhizoma Zingiberis extract pass through the sour water heating and refluxing extraction containing ethyl alcohol, recycle ethyl alcohol, acid liquid is extracted with ethyl acetate, concentrate after ethyl acetate is extracted is recovered under reduced pressure, concentrate crosses silica gel chromatographic column, with petroleum ether and ethyl acetate gradient, collect eluent concentration, to obtain the final product, wherein six gradient elutions of the petroleum ether and ethyl acetate of elution point, volume ratio is successively are as follows: 50: 1,33: 1,25: 1,20: 1,17: 1,14: 1, the flow point for collecting 14: 1, is concentrated to obtain the final product.Preparation method of the invention is easily operated, quality of finished product good and yield are high, and silica gel column chromatography separates one time up to methyl heptenyl ketone composition after need to only converting, and yield is very high, up to 60~65%, brings great convenience for industrialized production. |
| priorityDate | 2017-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.