http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101314577-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-522 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-522 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-06 |
| filingDate | 2011-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2013-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101314577-B1 |
| titleOfInvention | Method for producing 3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione of high purity |
| abstract | The present invention relates to a process for preparing 3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione as an antitussive agent. More specifically, (a) suspending 3-methylxanthine in a solvent selected from the group consisting of water, lower alcohols (C1 to C4), and mixtures of water and lower alcohols (C1 to C4), and (b ) A high-purity 3,7-dimethyl-3,7-dihydro-1H-purine-2,6 that is capable of mass production at low cost, including the step of methylating the suspension with a methylating agent in the presence of a base. It is about the manufacturing method of dione. |
| priorityDate | 2011-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.