| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bfdf49224a405be1f7b653c56ebad94 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-452
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-02 |
| filingDate |
1992-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d71f07ec553612b9c8d22dd8626eca7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_099eaa951dd693c335e15dd620857e68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0061831cbee037cf463bf89a74981ff1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e4bcffe36b96b4456e6c635f950dfb9 |
| publicationDate |
1994-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H06107631-A |
| titleOfInvention |
Process for producing N-maleoylphenylalanine alkyl ester |
| abstract |
(57) [Summary] [Structure] N-[(Z) -3-alkoxycarbonylacryloyl] phenylalanine alkyl ester is prepared by imidization in the presence of an acid catalyst to produce N-maleoylphenylalanine alkyl ester. Method. According to the production method of the present invention, it is possible to efficiently obtain N-maleoylphenylalanine alkyl ester which is useful as a precursor for producing aspartame. Further, the present invention can provide an inexpensive precursor for aspartame production using maleic anhydride as a raw material instead of L-aspartic acid which requires selective introduction of a protecting group. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108707090-A |
| priorityDate |
1992-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |