http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4328342-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_76195fd1cd08192222699d8e7a88c231 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D215-233 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-233 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-04 |
| filingDate | 1981-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d2f251997a18583c60c025e5fea11e97 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33dfb5a9dceaa177815b535659129025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_06aceeb28c87bcbe6308fe81de86484c |
| publicationDate | 1982-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4328342-A |
| titleOfInvention | Intermediate quinolin-4-ones |
| abstract | A process is provided for preparing pyrazolo[1,5-c]quinazoline derivatives of the structure <IMAGE> wherein X is O or S; R1 is hydrogen, lower alkyl, hydroxymethyl, phenyl-lower alkyl, phenyl or phenyl substituted with halogen, lower alkyl, lower alkoxy, or trifluoromethyl; R2 is lower alkoxy, phenyl-lower alkoxy, phenoxy, or phenoxy substituted with lower alkyl or lower alkoxy; and R3 and R4 are the same or different and are selected from the group consisting of hydrogen, alkyl of 1 to 4 carbons, alkoxy of 1 to 4 carbons, lower alkanoyloxy of 1 to 4 carbons, nitro, benzyloxy, benzyloxy having a single mono-lower alkoxy substituent, halogen, hydroxy, and trifluoromethyl, wherein quinolone compounds of the structure <IMAGE> which are new intermediates, are reacted with a hydrazine compound to form a 5-(2-aminophenyl)pyrazole which is then cyclized to the product. In addition, the above product may be reacted with a halogen acid to form the corresponding hydroxymethyl compound. |
| priorityDate | 1980-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 141.