http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112094311-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J51-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J51-00 |
| filingDate | 2020-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112094311-B |
| titleOfInvention | Process for preparing dexamethasone sodium phosphate by one-step method |
| abstract | The invention provides a process for producing dexamethasone sodium phosphate by a one-step method, which comprises the following steps: the method is characterized in that dexamethasone is used as a starting raw material, and the dexamethasone is subjected to (1) pyrophosphoryl chloride esterification, (2) purified water hydrolysis, (3) toluene extraction and purification, sodium hydroxide alkalization treatment, (4) activated carbon decolorization, and (5) acetone crystallization to obtain a high-purity dexamethasone sodium phosphate product with high yield. |
| priorityDate | 2020-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.