http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0680952-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_42d31351c76b18378e315027a536c70e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D211-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D211-90 |
| filingDate | 1995-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1999-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_474c96e6aac911b9e9c223908731bf93 |
| publicationDate | 1999-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0680952-B1 |
| titleOfInvention | Process for the preparation of optically pure 1,4-dihydropyridines |
| abstract | Optically pure 1,4-dihydropyridine acids of formulae (Ia) and (Ib) are prepared by crystallising the calcium salt of the racemic dihydropyridine lactic acid ester (II), separating the crystals into the optical forms, and hydrolysing the separated esters. R1 = 1-4C alkyl; one of X1 and X2 = NO2, F, Cl, or CF3, and the other = H, or both X1 and X2 = Cl. |
| priorityDate | 1994-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.