http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2000026470-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0b1c7560aa50b0da1769cd5b6f735b69 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D501-00 |
| 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/A61K31-546 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-545 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D501-18 |
| filingDate | 1998-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17a11bc5a3f7cd693ed6806f52409a72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ea92548407df740745ae0a7e7256653 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0bac4d2145014ff7438512ecb720edc |
| publicationDate | 2000-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2000026470-A |
| titleOfInvention | Method for producing 3-cephem compound |
| abstract | PROBLEM TO BE SOLVED: To provide a method for obtaining a cephem compound of the general formula (3) stably and in high yield without isolating an unstable compound generated by a conventional method. . SOLUTION: After reacting a β-lactam compound represented by the general formula (1) with a phosphorus halide compound in the presence of an organic base, an imino-β-lactam compound represented by the general formula (2) is obtained. Phenols are added to the same reaction system to carry out alcoholysis, and at the same time, deprotection of a carboxylic acid ester to obtain a 3-cephem compound represented by the general formula (3) or a salt thereof. A method for producing a cephem compound. Wherein R 1 is an arylmethyl group or the like, R 2 is a hydrogen atom, R 3 such as a halogen atom, such as a benzyl group which may have an electron donating group on the phenyl ring, and X represents a halogen atom.] |
| priorityDate | 1998-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.