http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CZ-150893-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eccd894c99fea2d1c0c8735872bb2309 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D211-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-435 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P9-12 |
| filingDate | 1993-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b708d2df53060b42cb00456b1c6ea7c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbd12c86c02930e15fbf55828c8aee5b |
| publicationDate | 1994-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CZ-150893-A3 |
| titleOfInvention | Process for preparing imidazopyridines |
| abstract | The invention relates to a novel process for the preparation of imidazopyridines of the formula I <IMAGE> in which R denotes alkyl having 1-6 C atoms, characterised in that 3,4-diamino-2-chloropyridine (II) is reacted with an acid anhydride of the formula RCO-O-COR' (III) in which R has the abovementioned meaning and R' is R or a different aliphatic or aromatic radical, to give a 4-amino-2-chloro-3-R-CO-aminopyridine (IV), this product is converted with 4'-bromomethyl-2-cyanobiphenyl (V) into a 4-amino-2-chloro-3-R-CO[N-(2'-cyanobiphenylyl-4-methyl)amino]pyridine (VI) in an inert solvent in the presence of an alkali metal alcoholate, and this product (VI) is treated with a strong acid, giving a 2-R-4-chloro-3-(2'-cyanobiphenylyl-4-methyl)-3H-imidazo[4,5-c]pyridine (VII) as intermediate. |
| priorityDate | 1992-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.