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d-Deprenyl
Clinical data
Other names	dextro-N-propargyl-N-methylamphetamine
Identifiers
	IUPAC name (2S)-N-methyl-1-phenyl-N-prop-2-ynyl-propan-2-amine;
CAS Number	4528-51-2 ;
PubChem CID	199605;
ChemSpider	172774 ;
UNII	YK7HY2RY1W;
CompTox Dashboard (EPA)	DTXSID901317215 ;
Chemical and physical data
Formula	C13H17N
Molar mass	187.286 g·mol−1
3D model (JSmol)	Interactive image;
Chirality	Dextrorotatory enantiomer
	SMILES C#CCN([C@H](Cc1ccccc1)C)C;
	InChI InChI=1S/C13H17N/c1-4-10-14(3)12(2)11-13-8-6-5-7-9-13/h1,5-9,12H,10-11H2,2-3H3/t12-/m0/s1 ; Key:MEZLKOACVSPNER-LBPRGKRZSA-N ;
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d-Deprenyl, also known as or dextro-N-propargyl-N-methylamphetamine, is an MAO-B inhibitor that metabolizes into d-amphetamine and d-methamphetamine and is therefore also a norepinephrine–dopamine releasing agent.^[1]^[2]^[3]^[4]^[5] It is one of the two enantiomers of deprenyl and is the opposite enantiomer of l-deprenyl (selegiline).

l-Deprenyl, also an MAO-B inhibitor, metabolizes to l-amphetamine and l-methamphetamine, which are both norepinephrine releasing agents. In contrast, d-deprenyl additionally has dopaminergic effects and has been found to be reinforcing in scientific research, whereas l-deprenyl is not known to have any appreciable psychological reinforcement.^[6]^[7]

In addition to its actions as an MAO-B inhibitor and NDRA, d-deprenyl has been found to bind with high affinity to the σ₁ receptor (K_i = 79 nM) similarly to various other amphetamine derivatives.^[8]^[9] Its l-isomer, selegiline, binds with 3.5-fold lower affinity in comparison.^[8]^[9]

References

^ Thiffault C, Quirion R, Poirier J (October 1997). "The effect of L-deprenyl, D-deprenyl and MDL72974 on mitochondrial respiration: a possible mechanism leading to an adaptive increase in superoxide dismutase activity". Brain Research. Molecular Brain Research. 49 (1–2): 127–136. doi:10.1016/S0169-328X(97)00135-6. PMID 9387872.
^ Thyagarajan S, Madden KS, Boehm GW, Stevens SY, Felten DL, Bellinger DL (January 2013). "L-Deprenyl reverses age-associated decline in splenic norepinephrine, interleukin-2 and interferon-γ production in old female F344 rats". Neuroimmunomodulation. 20 (2): 72–78. doi:10.1159/000345043. PMC 3695399. PMID 23207416.
^ Muralikrishnan D, Samantaray S, Mohanakumar KP (October 2003). "D-deprenyl protects nigrostriatal neurons against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced dopaminergic neurotoxicity". Synapse. 50 (1): 7–13. doi:10.1002/syn.10239. PMID 12872288. S2CID 24859873.
^ Simon L, Szilágyi G, Bori Z, Orbay P, Nagy Z (November 2001). "(-)-D-Deprenyl attenuates apoptosis in experimental brain ischaemia". European Journal of Pharmacology. 430 (2–3): 235–241. doi:10.1016/S0014-2999(01)01375-9. PMID 11711036.
^ Yasar S, Schindler CW, Thorndike EB, Szelenyi I, Goldberg SR (April 1993). "Evaluation of the stereoisomers of deprenyl for amphetamine-like discriminative stimulus effects in rats". The Journal of Pharmacology and Experimental Therapeutics. 265 (1): 1–6. PMID 8473997.
^ Yasar S, Gaál J, Panlilio LV, Justinova Z, Molnár SV, Redhi GH, Schindler CW (January 2006). "A comparison of drug-seeking behavior maintained by D-amphetamine, L-deprenyl (selegiline), and D-deprenyl under a second-order schedule in squirrel monkeys". Psychopharmacology. 183 (4): 413–421. doi:10.1007/s00213-005-0200-7. PMC 1360227. PMID 16292593.
^ Winger GD, Yasar S, Negus SS, Goldberg SR (December 1994). "Intravenous self-administration studies with l-deprenyl (selegiline) in monkeys". Clinical Pharmacology and Therapeutics. 56 (6 Pt 2): 774–780. doi:10.1038/clpt.1994.208. hdl:2027.42/110034. PMID 7995020. S2CID 10021258.
^ ^a ^b Itzhak Y (1994). Sigma Receptors. Academic Press. p. 84. ISBN 978-0-12-376350-1.
^ ^a ^b Stone TW (January 1993). Acetylcholine, Sigma Receptors, CCK and Eicosanoids, Neurotoxins. Taylor & Francis. pp. 124–. ISBN 978-0-7484-0063-8.