Safinamide mesylate

• CAT Number: I009274
• CAS Number: 202825-46-5
• Molecular Formula: C18H23FN2O5S
• Molecular Weight: 398.45
• Purity: ≥95%
• Synonyms: (2S)-2-[[4-[(3-fluorophenyl)methoxy]phenyl]methylamino]propanamide;methanesulfonic acid
• InChI: InChI=1S/C17H19FN2O2.CH4O3S/c1-12(17(19)21)20-10-13-5-7-16(8-6-13)22-11-14-3-2-4-15(18)9-14;1-5(2,3)4/h2-9,12,20H,10-11H2,1H3,(H2,19,21);1H3,(H,2,3,4)/t12-;/m0./s1
• InChIKey: YKOCHIUQOBQIAC-YDALLXLXSA-N
• SMILES: CC(C(=O)N)NCC1=CC=C(C=C1)OCC2=CC(=CC=C2)F.CS(=O)(=O)O

Safinamide (FCE 26743; EMD 1195686) mesylate is a potent, selective, and reversible monoamine oxidase B (MAO-B) inhibitor (IC50=0.098 µM) over MAO-A (IC50=580 nM)[1]. Safinamide mesylate also blocks sodium channels and modulates glutamate (Glu) release, showing a greater affinity at depolarized (IC50=8 µM) than at resting (IC50=262 µM) potentials. Safinamide mesylate has neuroprotective and neurorescuing effects and can be used for the study of parkinson disease, ischemia stroke et.al[2][3].
Safinamide mesylate (1-300 µM) reduces the amplitude of the peak sodium currents in a concentration-dependent manner. When currents are stimulated to a Vtest of +10 mV from a Vh of -110 mV, the IC50 value was 262 µM. When the holding potential is depolarized to -53 mV, the inhibitory effect of Safinamide mesylate with a lower IC50 value (8 µM) in rat cortical neurons[1].
Safinamide mesylate (intraperitoneal injection; 90 mg/kg; once daily; 14 days) treatment prior to MCAO significantly ameliorates MCAO-caused cerebral infarction volume, neurological deficit, disruption of the brain-blood barrier (BBB), and impairs expression of tight junction protein occludin and ZO-1 in mice[3].Safinamide mesylate (intraperitoneal injection; 5 mg/kg, 15 mg/kg and 30 mg/kg) dose dependently inhibits the veratridine-induced GABA release and Glu release in vivo. At the dose 30 mg/kg,  Safinamide mesylate prevents the effect of veratridine both on Glu (treatment F1,8=1.31; time×treatment interaction F8,64=2.4) and GABA (treatment F1,8=4.04; time F8,64=3.76, time×treatment interaction F8,64=2.83) release.Safinamide mesylate causes a slight, albeit not significant, reduction of veratridine-stimulated Glu release at 0.5 mg/kg and full inhibition at 5 and 15 mg/kg in rat[3].

Reference

[1]. Leonetti F, et al. Solid-phase synthesis and insights into structure-activity relationships of safinamide analogues as potent and selective inhibitors of type B monoamine oxidase. J Med Chem, 2007, 50(20), 4909-4916.
 [Content Brief]

[2]. C Caccia, et al.Safinamide: from molecular targets to a new anti-Parkinson drug. Neurology. 2006 Oct 10;67(7 Suppl 2):S18-23.
 [Content Brief]

[3]. Michele Morari, et al. Safinamide Differentially Modulates In Vivo Glutamate and GABA Release in the Rat Hippocampus and Basal Ganglia.J Pharmacol Exp Ther. 2018 Feb;364(2):198-206.
 [Content Brief]