http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1429454-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5929f2d6f4dba84be8dd3a8ba633db12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-62 |
| filingDate | 1974-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1429454-A |
| titleOfInvention | Process for produicing alpha-sulphophenylacetic acid derivative and certain alpha-sulphophenylacetic acid derivatives |
| abstract | 1429454 α-Sulphophenylacetic acid derivatives; penicillin derivatives TAKEDA CHEMICAL INDUSTRIES Ltd 9 July 1974 [9 July 1973 13 July 1973 30 July 1973] 30321/74 Heading C2C α-Sulphophenylacetic acid derivatives of the general Formula (I): wherein R is a substituted or unsubstituted primary alkyl, cycloalkyl or phenyl radical, e.g. the novel compounds in which R is an isobutyl or -CH 2 R<SP>1</SP> radical, R<SP>1</SP> being a C 4-14 branchedchain alkyl group, are obtained by contacting diesters of the Formula II: with mineral acids, organic sulphonic acids or acid ion-exchange resins. The diesters of Formula II may be obtained by reacting α-chlorosulphonylphenyl acetyl chloride with t-butanol to produce α-chlorosulphonylphenyl acetic acid t-butyl ester and reacting this with substituted or unsubstituted primary alcohols, cyclic alcohols or phenols. Penicillin derivatives of the Formula III: or salts thereof, may be obtained by reacting the α-sulphophenyl acetic acid derivatives of Formula I, or acid chlorides thereof, with 6-aminopenicillanic acid or its silyl derivative. |
| priorityDate | 1973-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.