Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_81075572b8d1526ce20dbf5dd7dbded8 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-34 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-34 |
filingDate |
2007-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2011-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84df5cb936d3a03efe1d33cf6773bef9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38aeeb230d3d120cf39930eb54283267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42502f456b98b9eb9c66e96bdf05f6d9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96c091eaeb1abf2b8558baab64c4c658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ab1f7dd8e2539f6b6242947462b27af |
publicationDate |
2011-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
EP-2007721-B1 |
titleOfInvention |
A process for the purification of ropinirole hydrochloride |
abstract |
The present invention provides an improved process for the purification of Ropinirole hydrochloride of formula (Ia) comprising steps of: (i) dissolving Ropinirole hydrochloride in water; (ii) treating the solution obtained in step (i) with sodium dithionate and charcoal; (iii) treating the filtrate obtained in step (ii) with water immiscible solvent and base and isolating the free base; (iv) treating the free base obtained in step (iii) with ethanolic HCl to give Ropinirole hydrochloride. |
priorityDate |
2006-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |