| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b2b67a55fbe29e6f15f8f0aee22bc924 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-14 |
| filingDate |
2009-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bfa78602d3c4a4e383e0fadf511ddcf5 |
| publicationDate |
2011-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2011105751-A1 |
| titleOfInvention |
Conversion of tryptophan into beta-carboline derivatives |
| abstract |
The invention belongs in the field of organic chemistry and relates to a new shortened Pictet-Spengler type reaction for preparing isomerically pure β-carboline compounds useful for the synthesis of tadalafil. |
| priorityDate |
2008-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |