http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0519140-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_48ca84fbd831e4285c0e278e51c8b46e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_985cdbc7d527eb5aa4ca1ceef52e7793 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D237-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-738 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-738 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D237-28 |
| filingDate | 1991-06-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44f6e6cf282b7019f8e1cb746e196460 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebd093109611a89649a1095ccef9f9c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2482df7d03f69026e30ad70a1717a410 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70bae6a0b715461d3ff50159c8c8ffcf |
| publicationDate | 1992-12-23^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0519140-A1 |
| titleOfInvention | Method for the preparation of substituted 1,4-dihydro-4-oxo-cinnoline-3-carboxylic acid, esters and salts thereof, and intermediates used in their preparation |
| abstract | A method for the preparation of compounds of the formulan n wherein X represents a group of the formula OR₁ or NR₁R₂, wherein R₁ and R₂ independently represent H or an organic group that forms a stable covalent bond with the N or O of said X; Y is H or an organic group that forms a stable ester with the adjacent COO group; R is an alkyl or aryl group optionally substituted with one or more stable organic substituents; each R₃ independently represents a stable organic group; and n is an integer from 0 to 3; n the method using new intermediates of the formulan n wherein R₃ and Y have the foregoing meanings; n W is either F or Cl; n and R₉ is a hydrocarbon such as a C₁-C₄ alkyl or alkenyl group. |
| priorityDate | 1991-06-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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