http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02250882-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d442b23cf8d36220858932ebbcd1812d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D413-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-78 |
| filingDate | 1989-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8906f06252982178f65c140663e905c5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f4f21aecc046117c6c87bc02c10a51b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15e551accfb51a305f33bfd438f67285 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e0cb05538ec2bba2412a943ad3f0450 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a029ff57e5aee67460aae24ea1888063 |
| publicationDate | 1990-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02250882-A |
| titleOfInvention | New fluorescent labeling agent |
| abstract | NEW MATERIAL:A 2-(2-oxazolyl)benzofuran derivative expressed by the formula [R 1 to R 4 represent H, OH or 1-3C alkoxy, or R 2 and R 3 together represent hydrocarbons (in this case 1-2 chain member can be replaced with an O atom); X represents haloformyl or carboxyl]. n EXAMPLE: 2-(5-Ethoxycarbonyl-2-oxazolyl)-5,6-methylenedioxybenzofuran. n USE: A fluorescent labeling agent. n PREPARATION: Ethyldiazopyrvate is reacted with chloroacetonitrile in benzene in the presence of a copper catalyst to form 2-chloro-5-ethoxycarbonyl-oxazole, which is then reacted with 4,5-methylenedioxysalycylaldehyde in DMF in the presence of potassium carbonate to form a 2-(2-oxazolyl) benzofuran derivative. The resultant ester derivative is hydrolyzed under alkaline conditions and the obtained free acid is treated with thionyl chloride. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1989-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.