http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-PI0709695-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_89569608abc52a4a8dbe3ac3caff6835 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-0814 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 |
| filingDate | 2007-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d7bad4c4f4579bdafcebc53c2ff1ad9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d92a9e0bfa1759dae81294e8d481e747 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd463043b15c44545c3ad8b54b69c1b1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48fc24c2a0dabb525b26d1dc7cde2cec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31ff8934492590aa0da8518a5a5d819c |
| publicationDate | 2011-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-PI0709695-A2 |
| titleOfInvention | process for preparing 6,7-dihydro-5h-imidazo [1,5-a] pyridin-8-one |
| abstract | <B> PROCESS TO PREPARE 6,7-DIIDRO-5H-IMIDAZO [1,5-a] PIRIDIN-8-ONA. <D> The present invention relates to 6,7-Dihydro-5H-imidazo [1, 5-a] pyridin-8-one (formula I) obtained in high yield by: 1) a process that proceeds from an appropriately protected C- (3-hydroxypyridin-2-yl) methylamine, whose amine is converted to formamide, which it is then cyclized to imidazo [1,5-a] pyridine and hydrogenated to 6,7-dihydro-5H-imidazo [1,5-a] pyridin-8-one, and C- (3-hydroxypyridin-2- il) Appropriately protected methylamines can be prepared in 2 steps from commercially available 3-hydroxy-2-cyanopyridine [932-35-4], or in 3 steps from 2-hydroxymethylpyridin-3-oI [14173-30-9] commercially available; 2) process to prepare 4-hydroxy-1 - (1 H-imidazol-4-yl) butan-1-one, an intermediate of the synthesis of 6,7-dihydro-5H-imidazo [1,5-a] pyridin- 8-one (formula I), as described in WO 2002/040484, from N, N-dimethyl-2- (trialkylsilanyl) imidazol-1-sulfonamide by lithiation and subsequent reaction with an appropriately protected acid 4-hydroxybutyralde, followed by oxidation of secondary alcohol, acid-induced deprotection of imidazole and deprotection of alcohol functionality; 3) process proceeding from 5,6,7,8-tetrahydroimidazo [1,5-a] pyridine [38666-30-7], which is oxidized. |
| priorityDate | 2006-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 107.