http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-216720-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eab56e4fe8837840887f41af83e328ee |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-056 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-052 |
| filingDate | 1983-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85fb700137e95fb97824552bb409e40b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_456a5bef8ebbd90ada9a03f8c315a123 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2250000adc18f490a82d4e47ffdb9bbc |
| publicationDate | 1984-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-216720-A1 |
| titleOfInvention | PROCESS FOR PREPARING SUBSTITUTED 2- (2-HYDROXYPHENYL) -5H- / 1 / BENZOPYRANO / 4,3-D / PYRIMIDINES |
| abstract | The invention relates to a process for the preparation of 2- (2-hydroxyphenyl) -5H- / 1 / benzopyrano / 4,3-d / pyrimidines, which in the 4- and 5-position as substituents an amino (or imino) , an oxo (or hydroxy) and / or a thioxo (or mercapto) group. It is the object of the invention, in addition to the already known from the literature 4-amino-2- (2-hydroxyphenyl) -5-oxo-5H- / 1 / benzopyrano / 4,3-d / pyrimidine other, previously unknown representatives of this type to produce in a novel way. The task is to find a technically feasible synthetic route. The object is achieved by the reaction of substituted 4-cyanomethylene-2- (2-hydroxyphenyl) -4H-1,3-benzoxazines with ammonia or with ammonium salts of weak acids, water or hydrogen sulfide. The compounds obtained are of pharmaceutical interest. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101985449-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101985449-B |
| priorityDate | 1983-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.