| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e43b4ca6b41ce9f54c9a895d474c81a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-07 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-43 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-34 |
| filingDate |
1997-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47c6d7460964f0b49bedd713b5f25450
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2236917918c5f90fddf5e94459136e37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbb293516d14b540003ece17522c9539
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf55f641f7ea8b64e5ec491e9a5b7b13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_caf097da6cd37c79a4f24912dfa49466 |
| publicationDate |
1999-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5900503-A |
| titleOfInvention |
Process for producing optically active cyanohydrins |
| abstract |
An optically active cyanohydrin represented by the following general formula (1): ##STR1## wherein each of R1 and R2 is a hydrogen atom or an amino-protecting group, and the configurations relating to the carbon atoms at the *2-position and *3-position are as follows: in the case of the carbon atom at the *2-position being in R-configuration, the carbon atom at the *3-position is in S-configuration, and in the case of the carbon atom at the *2-position being in S-configuration, the carbon atom at the *3-position is in R-configuration, can be efficiently produced by crystallizing one of the optically active cyanohydrins while treating a mixture of cyanohydrin diastereomers in the presence of an amine and an organic solvent to change the configuration relating to the carbon atom at the 2-position and thereby cause isomerization. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6365754-B1 |
| priorityDate |
1996-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |