http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113968889-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_da488acbf12d11e33fe3429bf853bf9f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J9-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J9-00 |
| filingDate | 2021-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d801efebef9112f72bfa7493405e053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abef5856fdb4e6d38d8838ce3318dc3b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f281e2d9d741d10619058f2caa1d8947 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4af17e9cf0bd7496657c823237859ffb |
| publicationDate | 2022-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113968889-A |
| titleOfInvention | Ring-opening composition and preparation method of brassinolide homologue intermediate |
| abstract | The invention relates to a ring-opening composition and a preparation method of a brassinolide homologue intermediate. The ring-opening composition includes: pyridine-acid and p-toluenesulfonic acid; the intermediate is prepared by reacting an intermediate compound with the ring-opening composition, and the structural formula of the intermediate compound is: The structural formula of the intermediate is The present invention also provides a method for preparing a brassinolide homologue intermediate, which includes the following steps: mixing the intermediate compound, the above-mentioned ring-opening composition and a first solvent, and then performing reflux reaction at 140-180° C. to obtain the intermediate. The intermediate prepared by the invention has high yield and few isomer impurities, and the isomer impurity content can be as low as 0.43%. |
| priorityDate | 2021-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.