| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_05a203d85ee01909eaf728dc16f0f6cb |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D215-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D215-56 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-056
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-56 |
| filingDate |
1978-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9a6128724fa30dab2d110265ed0ab79 |
| publicationDate |
1979-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4175193-A |
| titleOfInvention |
2-Amino-3-cyano-4-hydroxyquinolines |
| abstract |
The reaction of isatoic anhydrides with malononitrile in a reaction-inert solvent in the presence of a base to produce 2-amino-3-cyano-4-hydroxyquinolines and 2-amino- alpha , alpha -dicyanoacetophenones which are then hydrolyzed and decarboxylated under acid or base conditions to produce 2-amino-4-hydroxyquinolines, useful as intermediates for preparation of 1-oxo-1H-6-alkoxypyrimido[1,2-a]quinoline-2-carboxylic acids and esters of value as antiallergy agents. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4801406-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4362876-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101239945-B |
| priorityDate |
1977-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |