http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105452256-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N53-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-90 |
| filingDate | 2014-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105452256-B |
| titleOfInvention | The method for preparing pyridine Nan Ping compound |
| abstract | The present invention relates to a kind of method for preparing formula (I) pyridine Nan Ping compound, methods described comprises the following steps：I) the pyridine Nan Ping compound (pyripyropene A) of following formula is made to hydrolyze to obtain 1,7,11 3 deacetylation pyripyropene As；Ii 1,7, the 11 three deacetylation pyripyropene As obtained in step i)) are made to be reacted with cyclopropanecarbonyl chloride, so as to obtain the crude product for including formula (I) pyridine Nan Ping compound；Iii) make step ii) crude product crystallization, so as to obtain formula (I) the pyridine Nan Ping compound and mother liquor of crystallization；And iv) fraction of the mother liquor or its compound of Nan Ping containing pyridine is recycled in step i) basic hydrolysis. |
| priorityDate | 2013-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.