http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-483253-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5712b4838bdb16ebbc41121239e165b9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P9-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C271-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D241-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P43-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-495 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C271-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D241-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P9-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P7-02 |
| filingDate | 1979-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1980-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-483253-A1 |
| titleOfInvention | A PROCEDURE FOR THE PREPARATION OF DERIVATIVES OF PIPERA-ZIN-2,5-DIONA. |
| abstract | 1. A process for the preparation of piperazine-2,5-dione derivatives of formula (I): **(Formula)** where: n is from 1 to 5; L is CO2R where R is hydrogen or CO2R is an ester group in which R contains from 1 to 12 carbon atoms or CH2COR1 where R1 is C1-4 alkyl; Y is -CH2CH2-, -CH=CH-, or -C=C-; R2 is hydrogen or C1-4alkyl; R 4 is hydrogen or C 1-9 alkyl, C 3-8 cycloalkyl, C 3-8 cycloalkyl-C 1-6 alkyl; or R2 and R4 taken with the carbon atom to which they are attached represent a C5-8 cycloalkyl group; R5 is NR6R7 where R6 and R7, independently, are hydrogen, C1-4 alkyl, phenyl C1-4 alkyl or NR6R7 is a 3 to 7 membered heterocyclic group containing only one hetero atom; hydrogen, C1-4 alkyl or C1-4 alkyl substituted by an OH, C1-4 alkoxy, CN, halogen, or NR6R7 group, as defined above, or by one or two CO2A groups, where A is hydrogen or a group containing 1 to 12 carbon atoms; and R8 and R9 are independently hydrogen, C1-4 alkyl or together with the carbon atom to which they are attached are a C3-6 cycloalkyl group; and their corresponding salts. |
| priorityDate | 1978-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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