| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13b5107ffa701257f82d17b2e19b4412 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H13-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H15-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D407-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H17-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D407-14 |
| filingDate |
2010-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2016-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba9d5a235555b9b54246f35725b09324
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca6eb3596f60be112823cecd090a41c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d87f80a93e1d169f966b1924ee6d91c1 |
| publicationDate |
2016-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2751578-C |
| titleOfInvention |
Process for the synthesis of cleistanthin |
| abstract |
The present invention relates to a process for preparing compound of formula (I) that is Cleistanthin A. The process comprises the steps of reacting compound of formula (II) with compound of formula (III) in the presence of a first solvent, quarternary ammonium salt and first alkali to form compound of formula (IV). The compound of formula (IV) is further treated with a second solvent and a second alkali to form compound of formula (I). The present invention also relates to the preparation of salt of compound of formula (IV) that is Cleistanthin A acetate. |
| priorityDate |
2009-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |