| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3ebf02f10865880f16974fa41d365cc7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D489-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D489-08 |
| filingDate |
2014-08-14^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b1d04eb2fe57855cba79bf6fda00366
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_004cf6285d53e40992f15fbd63c624dd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_187380f679a7559a8bbb24b00bf1cc51 |
| publicationDate |
2015-06-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2015166554-A1 |
| titleOfInvention |
Preparation of 14-hydroxycodeinone sulfate |
| abstract |
Synthetic methods are provided for preparation of oxycodone and salts thereof with an improved impurity profile. Thebaine is converted to 14-hydroxycodeinone sulfate intermediate to minimize a 7,8-dihydro-8,14-dihydroxycodeinone impurity. Efficient methods for conversion of oxycodone base to oxycodone hydrochloride are provided to minimize 14-hydroxycodeinone impurity in the final product. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9938285-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9932348-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10202396-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10844072-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10189852-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11390627-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10316042-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10428079-B2 |
| priorityDate |
2013-12-18^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |