http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103936687-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D265-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D265-26 |
| filingDate | 2014-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103936687-B |
| titleOfInvention | A kind of west of preparing is for the method for Li Sita |
| abstract | The invention discloses a kind of west of preparing for the method for Li Sita, belong to process for preparing medicine technical field, existing preparation method " three wastes " is high for solving, yield is lower, high expensive.The method comprises: (1) is by compd A (2-amino-5-tolyl acid) or its salt esterification; (2) by step 1 gained carboxylate and chloroformic acid n-hexadecane alcohol ester generation acidylate; (3) step 2 gained compound is removed ester group, obtain 2-(n-Hexadecane oxygen carbonyl) amino-5-tolyl acid; (4) step 3 gained compound is carried out cyclization and obtain target product.By improving production stage, provide a kind of easy and simple to handle, efficient, facilitate suitability for industrialized production and the synthetic method of product of high quality west for Li Sita can be obtained. |
| priorityDate | 2014-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 81.