Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2ca2e4410855da087e11bf3eea8933fa |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-57 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-32 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-546 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-545 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-60 |
filingDate |
1977-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1981-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79bd8fb0de1beaa6efc1f03b1143c20f |
publicationDate |
1981-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
SU-845787-A3 |
titleOfInvention |
Method of preparing 7-methoxy-3-bromomethylcephems |
abstract |
7-Alkoxy-3-bromomethyl-3-cephems are provided by reacting a 3-methylenecepham with an alkali metal salt of a lower primary alcohol in the presence of a positive brominating agent at a temperature ranging from about -80 DEG to about 0 DEG C. The 3-bromomethylcephems provided by this invention are useful intermediates for the preparation of known cephalosporin antibiotics. |
priorityDate |
1976-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |