| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b9822bceff022feda91b10019125e70f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-28 |
| filingDate |
1978-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddf67282ffea1138f5e73db5a5ee74b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01a1b72aea57e6fc1846515d5f668bf7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5bffdaeb6083798622fc7bc6adf847a |
| publicationDate |
1980-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4221915-A |
| titleOfInvention |
Process for preparing thiophene derivatives and thiophene derivatives obtained thereby |
| abstract |
Process for the preparation of a series of thiophene derivatives, from which 2-thiopheneacetic acid derivatives can easily be prepared, in high yields and selectivity by using substituted or unsubstituted thiophenes as the starting materials by easy operations. 2-Thiopheneacetic acid derivatives are very useful compounds as the chemical modifier of penicillin and cephalosporin. Novel compounds, i.e. α-arylthio-2-thiopheneacetic acids are also disclosed. These compounds are useful as the intermediates of the synthesis of 2-thiopheneacetic acids. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112442007-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4355168-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4324399-A |
| priorityDate |
1977-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |