http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-454346-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P43-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-4015 |
| filingDate | 1976-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-454346-A1 |
| titleOfInvention | PROCEDURE FOR THE PREPARATION OF NEW PYRROLIDONES. |
| abstract | Procedure for the preparation of new pyrrolidones of the formula **(See formula)** where R1 signifies hydrogen, a low molecular weight aliphatic hydrocarbon radical or a cycloaliphatic or araliphatic hydrocarbon radical with 3 to 8 carbon atoms: R2 means an alcohol radical with 1 to 10 straight or branched carbon atoms, which is instead it can be substituted with a 0-alcohol radical of 1 to 5 carbon atoms, with a phenoxy radical that can be substituted one to three times, preferably once or twice, with optionally substituted alcohol groups of 1 to 3 carbon atoms with halogen, and/or with halogen atoms, a 3- to 7-membered ring cycloalkyl radical or a phenyl radical, which, in turn, may be substituted with one to three, preferably one or two alcohol groups from 1 to 3 carbon atoms; A means a group -C = C- or -CH = CH- (cis) - or CH2-CH2- and B means a group -CH2 = CH2-, (trans) - o, when A is equal to -CH2-CH2 - also a group -CH2-CH2-, as well as the physiologically compatible metal and ammonium salts of free acids, characterized in that a) in a compound of the formula **(See formula)** wherein R1, R2 and A have the meanings mentioned on the occasion of formula I, except R1 = hydrogen, and B represents a -CH-CH- (trans) group, the ketocarbonyl group is reduced, and optionally a1) is partially hydrogenated the compound obtained from formula I, where A represents a group (see formula) and B represents a group -CH = CH-, to form a compound of formula I in which A is equal to -CH = CH- (cis) and B equals -CH = CH- (trans), or a2) of formula I obtained according to a) group B and an unsaturated group A optionally present are perhydrogenated, forming a compound of formula I in which A and B each represent a -CH2-CH2- group; and eventually a3) the compounds of formula I obtained are transformed into free acids or their physiologically compatible metal or ammonium salts. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1975-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.