| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bcd600c789c13101f39db5af4f289a97 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D215-233
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-233
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 |
| filingDate |
1981-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1983-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_583f8c222db305d479ea47f805f990e8 |
| publicationDate |
1983-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4380632-A |
| titleOfInvention |
Method of preparing quinolines, naphthyridines and other nitrogen bi-heterocyclic compounds |
| abstract |
A method for the preparation of nitrogen bi-heterocyclic compounds is disclosed involving the saponification of a compound of the formula <IMAGE> (II) wherein R, E, D, B, A, and R' have the previously assigned significance which comprises saponifying the same by contacting it with at least a stoichiometric amount of water followed by decarboxylation. The carboxylic acid esters can be those formed by cyclization of dicarboxylic acid esters such as alpha-picolylaminomethylenemalonic acid diethyl ester. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6465653-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4704459-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4851535-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021030511-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5731440-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4870182-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AT-392789-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4560753-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AT-392791-B |
| priorityDate |
1980-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |