http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102898409-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb2779f57d07bbfff7223a76dd863ae6 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-40 |
| filingDate | 2012-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43a15e3d7de9ddeb91a18129f0641f65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28c28fb38d2b114ebbf4385ac61c70d3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b80a1106b05ccf0f266222cf7a363dae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7eb49eb99b8caf6c1aa7c5ca8bd21a99 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f5c6a3916325a9766611c9e98398671 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4058bc9175ff2aef5af929d49423ec6b |
| publicationDate | 2015-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102898409-B |
| titleOfInvention | Method for extracting fischeriana B from Euphorbia ebracteolata Hayata |
| abstract | The invention discloses a method for extracting fischeriana B from Euphorbia ebracteolata Hayata. The method comprises the following steps: crushing the root of Euphorbia ebracteolata Hayata; adding ethanol; subjecting an obtained alkaline solution of ethanol to refluxing; carrying out pumping filtration and separation; adding an alkali into a filtrate obtained after pumping filtration to adjust a PH value to 8 to 10; standing for 24 to 48 h to allow insoluble substances to be precipitated; carrying out filtration to remove the insoluble substances; adding an acid for acidifying so as to allow a PH value to be 2 to 3; carrying out standing, deposition and pumping filtration so as to obtain a filter cake; dissolving the filter cake with a solvent; then adding silica gel for mixing of a sample; carrying out spin drying to obtain powder; then carrying out gradient elution, column chromatographic separation, evaporation and condensation to obtain a solid; and dissolving the obtained solid in methanol and carrying out re-crystallization and filtration so as to obtain fischeriana B. The method is simple to operated, and an obtained product has high purity. |
| priorityDate | 2012-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.