http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102219563-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-365 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 |
| filingDate | 2019-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-102219563-B1 |
| titleOfInvention | Intermediates for the production of phenazine derivative and methods for their preparation |
| abstract | The present invention is prepared by reacting CPNA prepared by reacting 4-CA and F-NO 2 with a polar aprotic solvent having a boiling point higher than the reaction temperature and a sulfur compound having -divalent oxidation number. It relates to CPDA and clofazimine prepared using CPNA or CPDA prepared therein, and a method for preparing them. The present invention can maximize production efficiency by simplifying the process and improving process stability during CPNA production. In addition, the present invention can prepare a high yield and high purity CPDA by using a sulfur compound as a reducing agent. In addition, the present invention is advantageous for commercialization because by-products can be simply removed only by washing with purified water compared to the process of removing by-products through a conventional work-up process, and an eco-friendly process can be implemented by minimizing solvents. . |
| priorityDate | 2019-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.