G Veinberg, M Vorona, L Zvejniece, R Vilskersts, E Vavers, E Liepinsh, H Kazoka, S Belyakov, A Mishnev, J Kuznecovs, S Vikainis, N Orlova, A Lebedev, Y Ponomaryov, M Dambrova: 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. In: Bioorganic & Medicinal Chemistry. 21. Jahrgang, Nr.10, 2013, S.2764–71, doi:10.1016/j.bmc.2013.03.016, PMID 23582449 (google.com).
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L. Zvejniece, B. Svalbe, G. Veinberg, S. Grinberga, M. Vorona, I. Kalvinsh, M. Dambrova: Investigation into stereoselective pharmacological activity of phenotropil. In: Basic & Clinical Pharmacology & Toxicology. 109. Jahrgang, Nr.5, 2011, S.407–12, doi:10.1111/j.1742-7843.2011.00742.x, PMID 21689376.
Yu. Yu. Firstova, D. A. Abaimov, I. G. Kapitsa, T. A. Voronina, G. I. Kovalev: The effects of scopolamine and the nootropic drug phenotropil on rat brain neurotransmitter receptors during testing of the conditioned passive avoidance task. In: Neurochemical Journal. 28. Jahrgang, Nr.2, 2011, S.130–141, doi:10.1134/S1819712411020048.
E Vavers, L Zvejniece, G Veinberg, B Svalbe, I Domracheva, R Vilskersts, M Dambrova: Novel positive allosteric modulators of sigma-1 receptor. In: SpringerPlus. 4. Jahrgang, 2015, S.P51, doi:10.1186/2193-1801-4-S1-P51: „The R-configuration enantiomers of methylphenylpiracetam are more active positive allosteric modulators of Sigma-1 receptor than S-configuration enantiomers.“
L Zvejniece, E Vavers, B Svalbe, R Vilskersts, I Domracheva, M Vorona, G Veinberg, I Misane, I Stonans, I Kalvinsh, M Dambrova: The cognition-enhancing activity of E1R, a novel positive allosteric modulator of sigma-1 receptors. In: British Journal of Pharmacology. 171. Jahrgang, Nr.3, 2014, S.761–71, doi:10.1111/bph.12506, PMID 24490863, PMC 3969087 (freier Volltext).
G Veinberg, M Vorona, L Zvejniece, R Vilskersts, E Vavers, E Liepinsh, H Kazoka, S Belyakov, A Mishnev, J Kuznecovs, S Vikainis, N Orlova, A Lebedev, Y Ponomaryov, M Dambrova: 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. In: Bioorganic & Medicinal Chemistry. 21. Jahrgang, Nr.10, 2013, S.2764–71, doi:10.1016/j.bmc.2013.03.016, PMID 23582449 (google.com).
G Veinberg, E Vavers, N Orlova, J Kuznecovs, I Domracheva, M Vorona, L Zvejniece, M Dambrova: Stereochemistry of phenylpiracetam and its methyl derivative: improvement of the pharmacological profile. In: Chemistry of Heterocyclic Compounds. 51. Jahrgang, Nr.7, 2015, S.601–606, doi:10.1007/s10593-015-1747-9: „In conclusion, the obtained data demonstrated that E1R is the most active memory enhancing enantiomer of the 5-methyl-substituted phenylpiracetam homolog, and its cognition enhancing activity is higher than that of (R)-phenylpiracetam.“
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