| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c39a1378927653b8c66875ee04b08abe |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J63-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L99-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08H99-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08H8-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08H8-00 |
| filingDate |
2016-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f73e66c19b5e842ca55e8d35ad8eaa7c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f84774538967d523a74b8cfbc086d222
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b6778c2327cd3c1c5da01d445c68cbf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f16e0af871a394c22d16eeda4882d023 |
| publicationDate |
2017-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2620814-C1 |
| titleOfInvention |
Method of processing birch bark to obtain betulin and suberic acids |
| abstract |
FIELD: chemistry. n SUBSTANCE: method for processing the external birch bark includes the isolation of betulin and suberic acids, which consists in extraction of betulin by a regenerated mixture of EtOAc-water (~3.5% H 2 O), followed by treatment of the bark with hot water containing EtOAc for hydrodistillation of the organic solvent, and then with an aqueous solution of an inorganic base with extraction of salts of suberic acids. n EFFECT: effective method for complex processing of the outer birch bark is proposed, in which betulin and suberic acids are obtained in high yield. n 3 cl, 3 ex |
| priorityDate |
2016-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |