| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-04 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-04 |
| filingDate |
2001-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e27f8c4d4372e6f9e2e01f495391696c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ccbeeb7603d0b36030a5ba58cd78661
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59309e53e9f9a1fc887f237f524554de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1cb2eb42badac702ff86683b2570b2fd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f443fc787d25a57a7e90974cd342a659
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc8a9a3004cbe7b69d21ab818398a4c9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3de7ff71b56496961581ef84ccc74857
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85e5dc765ee45952b5600fad8619018e |
| publicationDate |
2003-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2003176696-A1 |
| titleOfInvention |
Preparing pyrazolopyrimidinone derivatives for the treatment of impotence |
| abstract |
The present invention relates to the method for preparing pyrazolopyrimidinone derivatives and their pharmaceutically acceptable salts having efficacy on the treatment of impotence, one of male sexual dysfunctions. The method according to the present invention comprises the steps of chlorosufonation the pyrazolamide, followed by amination with amine and intramolecular cyclization. The method provides the pyrazolopyrimidinone derivatives and their pharmaceutically acceptable salts with high yield and in an economic manner. |
| priorityDate |
2000-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |