| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ff4fc6caa37975b806f3313cae18215
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4621e308a4fcd54eb27ba63c77de0d41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bae0db8b4b72918c18dd490dfdf9774c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_825e0228f2d143561014f45517a09f3e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_952a4d871d61bc7db17b8fc3c5624442 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P31-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P35-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J63-00 |
| filingDate |
2009-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e1de7c2c459cc7ff7f4a977b74e0b8e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9986bf4f868d9e23fc762b9fb5aed9a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e59dc51697fcc7c053b2ee8fc35fec4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e671aaa771f03be40eb5d61369350d18 |
| publicationDate |
2009-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2009146619-A1 |
| titleOfInvention |
A method for producing betulinic acid |
| abstract |
A method for producing betulinic acid uses betulin as the starting material and comprises the following steps: (1) betulin is oxidized to prepare betulin aldehyde crude product; (2) betulin aldehyde crude product is oxidized to obtain betulinic acid crude product; (3) betulinic acid crude product is recrystallized to obtain betulinic acid finished product. The present invention avoids the shortcoming in the existing methods for synthesizing betulinic acid, i.e. the product comprises natural betulinic acid’s enantiomer or the technology route is complicated. The method of present invention has a low producing cost. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013038316-A1 |
| priorityDate |
2008-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |