http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100440494-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-00 |
| filingDate | 1998-07-24^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-03-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2005-03-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100440494-B1 |
| titleOfInvention | Method for preparing (S) -oxyracetam having optical activity |
| abstract | The present invention relates to a method for preparing (S) -oxyracetam having optical activity, and more particularly, (S) -3-hydroxybutyrolactone is used as a raw material, and as an intermediate, reactivity under aqueous solution conditions Synthesis of (S) -3,4-epoxybutyric acid salt represented by the following formula (2) with excellent optical activity, and the intermediate compound is subjected to an amination reaction with glycine or glycine derivatives under aqueous solution conditions and then cyclization reaction It relates to a process for preparing (S) -oxyracetam represented by the following formula (1) with high yield and high optical purity.n n n n n n n n n n n n n n n n n In the formula: R 1 represents an alkali metal atom, alkaline earth metal atom or quaternary amine group. |
| priorityDate | 1998-07-24^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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