| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_424db9d56b06a23aed410fcf5df652f3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J39-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-3346
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J39-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2609
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-33306
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2618
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-336
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2639 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate |
2018-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68675c92dac1fc72c756bcab27ad2178
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7bd2bb6e6d6921083e0b6431e22a8edf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff75dd10567284d4a55c06bee102a951 |
| publicationDate |
2019-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3434713-A1 |
| titleOfInvention |
Methods of preparing and purifying polyalkylene glycol derivatives |
| abstract |
A polyalkylene glycol derivative with a minimal impurity content is prepared simply by the steps of reacting a compound having formula (III-I) or (III-II) with an electrophile having formula (IV) in the presence of an optional basic compound, to form a reaction solution containing a compound having formula (V), and passing the reaction solution through a column of cation and anion exchange resins to remove water-soluble impurities, for thereby purifying the desired polyalkylene glycol derivative.n n n n R 4 -R 5 -X (IV) |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021099346-A1 |
| priorityDate |
2017-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |