| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-59
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D-
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-545
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-59 |
| filingDate |
1981-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1984-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36056879427ad22a523463f249f7929d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3bf32c1dcbbf8e5ae79a981fdada4068 |
| publicationDate |
1984-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4436903-A |
| titleOfInvention |
Process for the production of 7 β-substituted-3-unsubstituted-3-cephem-4-carboxylic acid compounds |
| abstract |
The invention relates to a novel advantageous process for the production of compounds of the formula ##STR1## wherein n is 1, R 1 a is hydrogen or an amino protective group R 1 A , R 1 b is hydrogen or an acyl group Ac, or R 1 a and R 1 b together are a bivalent amino protective group, R 2 is hydroxyl or a radical which, together with the carbonyl grouping --C(═O)--, forms a protected carboxyl group, and the group of the formula --N(R 3 a ) (R 3 b ) is a secondary or tertiary amino group, or a salt thereof with salt-forming groups. The process comprises reaction of the corresponding 3-amino compounds with borohydrides in the presence of acids. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4820832-A |
| priorityDate |
1980-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |