| 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/C07D205-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D499-88 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D205-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D205-08 |
| filingDate |
1989-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb8217f702aeafe0e7128e3643855fbc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a01ab7599f20b0fe5d8d9c88d1645a65 |
| publicationDate |
1990-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4962196-A |
| titleOfInvention |
(3S, 4R)-3,4-trans-disubstituted azetidin-2-one intermediates |
| abstract |
The invention relates to an improved process for the preparation of compounds of formula ##STR1## or salts thereof, starting from compounds of formulae ##STR2## via compounds of formulae ##STR3## in which compounds R 1 is hydrogen or lower alkyl, R 2 is an organic radical which may carry a functional group which may be protected by a customary protective group R 2 o , R 3 is hydrogen or a customary carboxyl protective group R 3 o , W is a group which can be replaced by a thiocarboxylic acid radical of formula III, and Z is oxygen or sulfur. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5215997-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-655172-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5399679-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5153315-A |
| priorityDate |
1985-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |