| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f0653b87e774630cb1da426c77931a1f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B37-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B37-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-74 |
| filingDate |
1998-01-26^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-06-01^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7f8e67491002678599ddbd42ad17fd4 |
| publicationDate |
1999-06-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5908957-A |
| titleOfInvention |
Isomerization process |
| abstract |
A process is disclosed for the catalyzed isomerization of a Z-isomer of a vitamin A compound or of a mixture of several of such isomers into a mixture of the corresponding all-E- and 13-Z-isomers of this vitamin A compound. The process utilizes nitrogen monoxide or a gas mixture containing nitrogen monoxide as the isomerization catalyst. Vitamin A acetate or vitamin A acid is preferably used as the vitamin A compound. The thus-produced all-E vitamin A and its alkanoyl esters have of all isomers by far the highest biological activity and are accordingly almost exclusively used in human and animal nutrition. The 13-Z-vitamin A compounds in turn play an important role as pharmaceutically active substances. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9573872-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9434671-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-028500-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014097171-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9765002-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015321987-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113429326-A |
| priorityDate |
1997-02-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |