http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106699724-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P23-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-381 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-38 |
| filingDate | 2017-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106699724-B |
| titleOfInvention | A method of recycling articaine hydrochloride or in which product from synthesis mother liquid |
| abstract | The method that the present invention relates to a kind of to recycle articaine hydrochloride or in which product from synthesis mother liquid, it the described method comprises the following steps: (1) after carrying out concentration to articaine hydrochloride or in which Product formation mother liquor, weakly polar organic solvent is added and inorganic salt solution is sufficiently stirred, it stands, collects organic phase；(2) after carrying out concentration to organic phase obtained by step (1), highly polar organic solvent is added and sufficiently dissolves, crystallisation by cooling to get；This described articaine hydrochloride or in which Product formation mother liquor are the synthesis mother liquids during preparing final product articaine hydrochloride as raw material using 3- amino -4- methyl-thiophene -2- carboxylate methyl ester caused by each step rich in the intermediate product or articaine hydrochloride.Method provided by the invention recycles the waste of recyclable target product, reduction material in mother liquor to greatest extent, reduces treatment cost of waste liquor and reduce environmental pollution. |
| priorityDate | 2017-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.