| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_870eb0bfda8e9252517b2b7ae44506e0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P15-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P43-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 |
| filingDate |
2012-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_255d9caf407ecfc69850181347a7f8f9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d445172920be05d16c84402e2dbec6f |
| publicationDate |
2013-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2673275-A1 |
| titleOfInvention |
PROCESS FOR OBTAINING COMPOUNDS DERIVED FROM TETRAHYDRO-ß-CARBOLINE |
| abstract |
The invention relates to a process for obtaining compounds derived from tetrahydro-beta-carboline, specifically tadalafil and intermediate products from the synthesis, comprising the reaction between piperonal and an alkyl ester of D-tryptophan as a salt, and in the absence of any other component, followed by haloacetylation and a final cyclization with methylamine. |
| priorityDate |
2011-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |