http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6391319-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-35 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P35-00 |
| filingDate | 1986-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90ce2417115decaceff6584222f523a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2d369aa8195226df9a7360924e405b0 |
| publicationDate | 1988-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6391319-A |
| titleOfInvention | Antitumor agent |
| abstract | NEW MATERIAL:A triterpene based compound expressed by formula I (R is formula II or III). n USE: An antitumor agent. n PREPARATION: MAGIRESOZO (a seaweed, scientifically named Laurencia obtusa and belonging to red algae) is extracted with a hydrophilic organic solvent, e.g. methanol, etc., and the resultant extract is adsorbed on an active adsorbent, e.g. silica gel, etc., and adsorbed components are partially eluted and removed with a nonpolar organic solvent, e.g. benzene, etc. The adsorbed components which are not eluted by the above-mentioned treatment are eluted with a polar organic solvent, e.g. methanol, etc., to give a neutral crude extract, which is then purified by chromatography, e.g. ordinary adsorption chromatography, partition chromatography, etc., and/or a fractional crystallization method, etc., to afford the aimed compound expressed by formula I. n COPYRIGHT: (C)1988,JPO&Japio |
| priorityDate | 1986-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.