| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_66a9d6f86e9d9803174d2a03d3cd24a3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-36 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-93
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-93
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D498-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 |
| filingDate |
1992-04-29^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28cdea344242e5b89e9e63a199ee91c8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74064de177771b374e059e1d617f7cc3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59b2aa3b3028d1b56af7b670ca6a4aba |
| publicationDate |
1992-10-31^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2067552-A1 |
| titleOfInvention |
Process for the preparation of polycyclic compounds |
| abstract |
ABSTRACT Polycyclic compounds (I) can be prepared in ac-cordance with the following reaction formula: iron perchlorate ? TFA wherein R1-R8 each represents a hydrogen atom, a hydroxyl group, an alkoxyl group or a substituted or unsubstituted benzyloxy group or neighboring two groups of R1-R8 are coupled together to form an alkylenedioxy group; and A is an alkylene group which may be sub stituted by one or more alkoxycarbonyl groups, an alkenylene group which may be substituted by one or more alkoxycarbonyl groups, or a group represented by any one of the following formulas: , and . This facilitates the development of processes for the synthetic production of naturally occurring drugs. |
| priorityDate |
1991-04-30^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |