Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c8197e36ab518594cc2f5dc8c7268855 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D221-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P25-04 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P25-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-435 |
filingDate |
1975-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1977-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03bedf6ddd659b1c14728ee314d492f4 |
publicationDate |
1977-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-4025521-A |
titleOfInvention |
Method of preparing β-dihydrothebaine |
abstract |
The reaction of thebaine or dihydrothebaine-φ with potassium in liquid ammonia respectively in the absence or presence of catalyst yields β-dihydrothebaine. |
priorityDate |
1975-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |