[EN] 4R,5R-ENANTIOMER OF 2-(5-METHYL-2-OXO-4-PHENYL-PYRROLIDIN-1-YL)-ACETAMIDE WITH NOOTROPIC ACTIVITY [FR] ENANTIOMÈRE 4R,5R DU 2-(5-MÉTHYL-2-OXO-4-PHÉNYLPYRROLIDINE-1-YL) ACÉTAMIDE À ACTIVITÉ NOOTROPIQUE
[EN] 4R,5R-ENANTIOMER OF 2-(5-METHYL-2-OXO-4-PHENYL-PYRROLIDIN-1-YL)-ACETAMIDE WITH NOOTROPIC ACTIVITY [FR] ENANTIOMÈRE 4R,5R DU 2-(5-MÉTHYL-2-OXO-4-PHÉNYLPYRROLIDINE-1-YL) ACÉTAMIDE À ACTIVITÉ NOOTROPIQUE
Synthesis and biological evaluation of 2-(5-methyl-4-phenyl-2-oxopyrrolidin-1-yl)-acetamide stereoisomers as novel positive allosteric modulators of sigma-1 receptor
Novel positive allosteric modulators of sigma-1 receptor represented by 2-(5-methyl-4-phenyl-2-oxopyrrolidin-l-yl)-acetamide enantiomers were synthesised using an asymmetric Michael addition of 2-nitroprop-1-enylbenzene to diethyl malonate. Following the chromatographic separation of the methyl erythro- and threo-4-nitro-3R- and 3S-phenylpentanoate diastereoisomers, target compounds were obtained by their reductive cyclisation into 5-methyl-4-phenylpyrrolidin-2-one enantiomers and the attachment of the acetamide group to the heterocyclic nitrogen. Experiments with electrically stimulated rat vas deference contractions induced by the PRE-084, an agonist of sigma-1 receptor, showed that (4R,5S)- and (4R,5R)-2-(5-methyl-4-phenyl-2-oxopyrrolidin-l-yl)-acetamides with an R-configuration at the C-4 chiral centre in the 2-pyrrolidone ring were more effective positive allosteric modulators of sigma-1 receptor than were their optical antipodes. (C) 2013 Elsevier Ltd. All rights reserved.
[EN] 4R,5R-ENANTIOMER OF 2-(5-METHYL-2-OXO-4-PHENYL-PYRROLIDIN-1-YL)-ACETAMIDE WITH NOOTROPIC ACTIVITY<br/>[FR] ENANTIOMÈRE 4R,5R DU 2-(5-MÉTHYL-2-OXO-4-PHÉNYLPYRROLIDINE-1-YL) ACÉTAMIDE À ACTIVITÉ NOOTROPIQUE
申请人:GRINDEKS
公开号:WO2012123358A1
公开(公告)日:2012-09-20
The invention relates to the 5R,4R-enantiomer of 2-(5-methyl-2-oxo-4-phenyl- pyrrolidin-1-yl)-acetamide with cognition enhancing activity of high pharmacological value and to its preparation method.