| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_111790025aaf05bcc32855e1be082e27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44fea0488545e7ceeb9e55f1ab47d172
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2dc7c3f947ddc0b8627108354afb3ae
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f718a53566a9b1778cc697467a0cd81f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D499-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-00 |
| filingDate |
1993-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1996-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5e0c9bdcf88ce3c08c811868890555f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4a9f52cd3da41ba90effa7a7aeb3b39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3936ac3522a607e42213dccd905c673
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f80df8f8a3878ecaf5414b214413ecc6 |
| publicationDate |
1996-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2064931-C1 |
| titleOfInvention |
Method of synthesis of penicillanic acid 1,1-dioxide and its salt |
| abstract |
FIELD: organic chemistry. SUBSTANCE: 1,1-dioxide-6,6-dibromopenicillanic acid or 1,1-dioxide-6-α-bromopenicillanic acid is interacted with reducing agent - sodium sulfite. Process is carried out in an aqueous medium in the presence of sodium tetraborate or sodium dihydrophosphate at pH = 7.8-8.6. Then the end product is isolated as free acid or its salt. EFFECT: improved method of synthesis. |
| priorityDate |
1993-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |