http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5728080-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97ddd4d1d0ebc8a7d2c8e7d214d08cf3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-58 |
| filingDate | 1980-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f1a8b8b787b3a5460e0cf7f21dd9d62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8501a389511627d2d75270c8c5cd70e |
| publicationDate | 1982-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5728080-A |
| titleOfInvention | Novel chromene type compound |
| abstract | NEW MATERIAL:A compound shown by the formula (R 1 is H or lower alkyl; R 2 is H or lower aliphatic acyl group). n EXAMPLE: 2, 7-Dimethyl-2- ( 4,8-dimethylnona-3, 7-dienyl ) -5-hydroxy-2H-1-benzopyran-6-carboxylic acid (dauri chromenic acid). n USE: An antibacterial agent against Gram-positive bacteria, and a relaxing agent for smooth muscle. n PROCESS: The leaves of Rhododendron dauric um Linn., an ericaceous plant, for example, are soaked in methanol for two weeks to carry out methanol extraction. Methanol is removed from the methanol extracted solution, the residue is fractionated by silica gel column, and a fraction having antibacterial activity is fractioned by silica gel thin layer. The fraction having activity is fractionated again by silica gel column and purified, to give a compound shown by the formula. n COPYRIGHT: (C)1982,JPO&Japio |
| priorityDate | 1980-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.