http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2241887-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_58833d6c0dc5cfab5bbd7e8354619752 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-00 |
| filingDate | 1996-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2767a01d0a2537739cd1cce8632e2ed7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d8a4342cd5ef6574cdc76c276d0d2ca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28d046bc7ec8c5809602e01a7832589b |
| publicationDate | 2004-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2241887-C |
| titleOfInvention | Process for preparing 2,4-dihydroxypyridine and 2,4-dihydroxy-3-nitropyridine |
| abstract | The present invention is directed to a process for preparing 2,4-dihydroxypyridine comprising heating a compound of formula A wherein R is H, alkyl or aralkyl and phosphoric acid where the ratio of phosphoric acid to water is not less than about 27 to 1 weight %. The invention is also directed (See formula I) to a process for preparing 2,4-dihydroxy-3-nitropyridine comprising reacting 2,4-dihydroxypyridine with nitric acid. The processes of the present inventi on prepare intermediates which are useful in preparing compounds which are useful for treating cardiovascular disease marked by hypertension or myocardial ischemia, ameliorating ischemic injury or myocardial infarct size, or treati ng hyperlipidemia or hypercholesterolemia. |
| priorityDate | 1996-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 519.