http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IE-33933-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bba842fc4d37dfcaced1b55bc0c91c7c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D295-073 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D295-073 |
| filingDate | 1969-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f67b202e44977081a5ded9cdfdd8c27c |
| publicationDate | 1974-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IE-33933-B1 |
| titleOfInvention | Quinazolinones |
| abstract | Compounds are of the class of 1-substituted-4-aryl-2(1H)-quinazolinones, e.g., 1-ethyl-4-phenyl-2(1H)-quinazolinone, which are useful as anti-inflammatory agents, antipyretics and analgesics. The compounds are prepared by any one of several processes including, inter alia, the cyclization of a 2-alkylaminobenzophenone with urethane, the cyclization of a 2-alkylaminobenzophenonimine with phosgene, the reaction of a 1-alkali metal salt of a 4-aryl-2(1H)-quinazolinone with an alkyl halide or from a 1-unsubstituted-4-arylquinazoline which is reacted with a methyl halide to form the corresponding 1-methyl-quinazolinium halide which is either then directly oxidized or first reduced and then oxidized to obtain the 1-methyl-4-aryl-2(1H)-quinazolinone. Novel intermediates disclosed include the 1-methyl-4-aryl-quinazoliniums and compounds which are 1-methyl-4-aryl-3,4-dihydroquinazolines.n[US3723432A] |
| priorityDate | 1968-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.