http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3782985-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d4b619a689f14cadd8e0c6298d60f7e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-803 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D401-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-803 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D401-04 |
| filingDate | 2019-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2e09dd72e8952f9b9e1d60c353eddeb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b1209597ade6a51f7c8bed3c1b3cf11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b28107ed0664e49a408996333b9ace5 |
| publicationDate | 2021-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3782985-A1 |
| titleOfInvention | Process for manufacturing 5-methoxymethylpyridine-2,3-dicarboxylic acid derivatives |
| abstract | An improved process for manufacturing a compound of formula (I),comprising steps (ii) and (iii):(ii) reacting a mixture of compounds of formulae (III.1), (III.2) and (III.3),with phosphorous acid (HPO(OH)<sub>2</sub>) or a phosphite selected from dimethyl phosphite and diethyl phosphite, and trimethylamine in a solvent at a temperature range of 0°C to 100°C, to obtain a compound of formula (II); and(iii) reacting the compound of formula (II) in methanol, toluene or a methanol/toluene mixture with a base selected from MOCH<sub>3</sub> and MOH (if the solvent is methanol), where M is as defined in formula (I), to obtain the compound of formula (I). |
| priorityDate | 2019-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 302.