| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dfd617dc43a4c986d2dd81e4cb39d9dd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1394e66eb648f9bf0a1f5507fe25b67b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P35-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-22 |
| filingDate |
2001-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c4e8a300fde9ca60d41d888dc371548
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc8123fee017ac955027d3b92e4ebbd3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b70d055990cfca7eade06fd14d792a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41751649a212909a0f30bb24e5ce3ad6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e7ef1db191454cbf1e53c69431e6451 |
| publicationDate |
2003-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6552197-B2 |
| titleOfInvention |
Condensed-hexacyclic compounds and a process therefor |
| abstract |
Disclosed are a process for the preparation of a compound represented by the formula (1), which comprises treating a compound represented by the formula (2) with methanesulfonic acid and then subjecting the thus-treated compound to recrystallization; and Compound (1) so obtained.This Compound (1) is free of hygroscopicity, excellent in filterability and solubility and easy in handling. Furthermore, according to the preparation process of the present invention, an unnecessary isomer can be converted into the target one and separation of the target isomer can be conducted easily. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8957045-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8859756-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8716262-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8716263-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11555019-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8759510-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9045520-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11634508-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8551973-B2 |
| priorityDate |
1995-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |