http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-643055-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b6042509de7544921c96de43b9da1438 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e737b999245afb461a9a9e552e8f3a1e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-00 |
| filingDate | 1948-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6fa0dacb73b0426e04fb73d3344c4095 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04310faebe8aae8dce3b55a602879f12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8cbada90cea15131219283aac0ac934d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7458e4ff8065ab8d9091b45c24502b5a |
| publicationDate | 1950-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-643055-A |
| titleOfInvention | Improvements in or relating to therapeutic substances |
| abstract | A water-soluble stable salt of an ester of vitamin A alcohol of the formula <FORM:0643055/IV (b)/1> where M represents a radical such as Na+, K+, NH4+, or the equivalent amount of Ca++ or Mg++, and X is the residue of a polybasic acid, in which 1 molecule of vitamin A is combined with a molecule of the polybasic acid, which process comprises reacting vitamin A alcohol with an acylating agent and converting the product thus obtained into the mutual water-soluble stable salt required. As polybasic acids there may be used sulphuric acid, phosphoric acid, succinic acid, phthalic acid or glutaric acid. The acylating step may be carried out in the presence of pyridine or a -picoline. Detailed examples are given. |
| priorityDate | 1948-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.