Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d669af06cb2abbcd6823699582a97002 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-28 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-40 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-28 |
filingDate |
1988-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae38dd07301976045642db5f5566c8d9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eeac174a21f07e89f997e5bc30b7b83b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c58ce45932cd4438feb5372a930eb80 |
publicationDate |
1989-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
EP-0312783-A2 |
titleOfInvention |
Process for the preparation of alkaline earth metal salts of 2-pyrrolidinone-5-carboxylic acid |
abstract |
Alkaline earth metal salts of 2-pyrrolidone-5-carboxylic acid (pyroglutamic acid) are prepared by heating the corresponding alkaline earth metal salt of glutamic acid while maintaining the solid state at a temperature in the range from 120 ° C. to 250 ° C. until the water of reaction of the intramolecular condensation (Cyclocondensation) is completely expelled. |
priorityDate |
1987-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |