http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007124025-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_10e4b1416c6e66e0ade5429212414964 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c457cf046a14c0e6538a7a527a8fa046 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3ba34f8b4d65e7bc691b5180c2e20c8d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_27722538f7a3329a54e5218a60dd878b http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be4e7f4c8dba8aa909a60918f6b35612 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P25-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-04 |
| filingDate | 2007-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a09763182b509a94215194bcdadcc83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d08b70c89eb584666762db3e7a21f724 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_226db848e35bd9a2983c3360b5053704 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d5c31b103ee10766aab1cf27a772ecf |
| publicationDate | 2008-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2007124025-A3 |
| titleOfInvention | Methods for preparing eszopiclone crystalline form a, substantially pure eszopiclone and optically enriched eszopiclone |
| abstract | The present invention provides methods for preparing eszopiclone Form A, substantially chemically pure eszopiclone, or eszopiclone with low level(s) of residual solvent(s). The present invention also provides eszopiclone with low level(s) of residual solvent(s). The present invention also provides a process for optical enrichment of eszopiclone free base. For instance, one of the embodiments of the invention is directed to a method of preparing eszopiclone Form A, wherein the method comprises crystallizing eszopiclone free base from a solvent selected from the group consisting of isopropanol (IPA), methyl isobutyl ketone (MIBK), acetone, n-butanol, i-butanolisobutanol, 2-butanol, tetrahydrofuran (THF), dimethyl carbonate, methanol, ethanol, ethyl lactate, dimethylformamide (DMF), carbon tetrachloride, toluene, iso-butyl acetate and mixtures thereof. |
| priorityDate | 2006-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.