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classificationIPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-02
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filingDate 1993-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42b36c9f1a4bcbc1c0647573fbf001a9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b52cd5d0f0b2c5dbf1b9a06d8fa7f04
publicationDate 1997-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber PL-171090-B1
titleOfInvention Method for producing ethyl apovincamate (©) Origin: December 22, 1992, E S, 9202595 PL
abstract A process for the preparation of ethyl apovinaminate of the formula 1, characterized by reacting apovincamic acid of the formula 2 with ethanol in the presence of a catalyst which is a penta fluorobenzene derivative of the general formula 3, in which X is the group - OCH3, -CHOCH3, -NO2, -CH3 or CN, in a polar organic solvent, in the presence of an organic base at room temperature. W ZÓ R 1 PL
priorityDate 1992-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date>
type http://data.epo.org/linked-data/def/patent/Publication

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