http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1489839-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97ad4dbfd6d33272b51f2a96c012236a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J9-005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-575 |
| filingDate | 1975-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1489839-A |
| titleOfInvention | Purification of 3alpha,7alpha-dihydroxy-5beta-cholanic acid |
| abstract | 1489839 Chenodeoxycholic acid INTELLECTUAL PROPERTY DEVELOPMENT CORP 7 May 1975 [7 May 1974] 19262/75 Heading C2U Chenodeoxycholic acid is treated to remove entrapped organic solvent of crystallization, e.g. by (i) dissolution in aqueous alkali and precipitation with acid; or (ii) dissolution in an alcohol and evaporation to dryness; or (iii) drying under vacuum at elevated temperature (e.g. 85-100‹ C./2 mm. Hg). The product has a m.p. of 142-145‹ C. The initial chenodeoxycholic acid is isolated from bile, purified and converted to solvates with ethyl acetate, hexane, heptane and C 5-7 cycloalkanes as described in Specifications 1,450,939 and 1,489,840. Oral compositions for dissolution of cholesterol gallstones comprise chenodeoxycholic acid treated as above and a carrier. |
| priorityDate | 1973-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.