http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102796158-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02 |
| filingDate | 2011-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102796158-B |
| titleOfInvention | A kind of ethinylestradiol crude drug impurity and preparation method thereof and the purposes as standard substance |
| abstract | The invention discloses a kind of a kind of new by-product produced in ethinylestradiol synthesis technique and synthetic method thereof.Shown in formula I, its chemistry is entitled for this by-product: the nor-17 pregnant steroid of α 1,3,5 (10) triolefin 20 (3 hydroxyl 3 methylbutynyl 1 base) 17 alcohol of 3 hydroxyls 19.Present invention also offers the preparation method of this by-product, after first carrying out grignard exchange with alkyl bromination magnesium and 3 methyl 1 butine 3 alcohol, then carry out grignard reaction with estrone, this material can be obtained simply and easily.This kind of compound can be as the standard substance of Control of Impurities in ethinylestradiol production technology. |
| priorityDate | 2011-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.