| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d7db2a378fab141c396413fe3524e390 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11B9-0076
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D409-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D409-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D495-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D495-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D409-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K8-49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23L27-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23L27-14 |
| filingDate |
2006-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2011-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0c1a3c055058e7b91131f602e91ee49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad42df970505f991e9722b1c096cbfe5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55148df285f1c32f46e3464cdab8ff62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_759b97d5352edc63db23494a526c4178
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8baa0985704f8b6548d1453335b3b8c5 |
| publicationDate |
2011-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1854791-B1 |
| titleOfInvention |
Novel thiophene compound and process for producing caffenofuran or analogue thereof from the same |
| abstract |
A novel thiophene compound which is an intermediate useful for the efficient production of caffenofuran or an analogue thereof. Also provided is a process for producing caffenofuran or an analogue thereof via the novel thiophene compound as an intermediate. The novel thiophene compound is represented by the following formula (1): [wherein R1 represents hydrogen or C1-4 alkyl; R2 represents hydrogen or an alcohol-protecting group; and R3 represents hydrogen or a group represented by -COR4 or -C(OH)R5 (wherein R4 and R5 each represents C1-4 alkyl), provided that when R2 and R3 are hydrogen, then R1 is none of hydrogen, methyl, and n-propyl]. A thiophene compound represented by the following formula (2), among the compounds of the formula (1), is reduced and cyclized in the presence of a transition metal catalyst to produce caffenofuran or an analogue thereof (3a) as shown below. [Chemical formula 2] H2 (2) → (3) (In the formulae, R1 represents hydrogen or C1-4 alkyl; and R4 represents C1-4 alkyl.) |
| priorityDate |
2005-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |