http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014034203-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_669c01133740c5233f2c8738904ea3af |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D215-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-18 |
| filingDate | 2013-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ccced0c581dd90ae411a8d190844f9d0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c26b62bd38a9b474c6068c6dbe77941 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_942614f33c9a08960453691dd97cd349 |
| publicationDate | 2014-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2014034203-A1 |
| titleOfInvention | Method for producing high-purity montelukast |
| abstract | Provided is a method for producing high-purity montelukast by effectively removing impurities which are inevitably produced as by-products or mixed in during synthesis of montelukast. This method for producing montelukast or salts thereof comprises (1) a step of preparing a solution which is divided into an organic phase in which crude montelukast including impurities is dissolved and an acidic aqueous phase, (2) a step of adjusting pH of the aqueous phase of the solution to 7.0 or more and less than 8.8, (3) a step of separating the organic phase from the aqueous phase, and (4) a step of collecting montelukast or salts thereof from the organic phase. |
| priorityDate | 2012-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.