SIB 1553A

SIB-1553A free base is an orally bioavailable nicotinic acetylcholine receptors (nAChRs) agonist, with selectivity for β4 subunit-containing nAChRs. SIB-1553A free base is also a selective neuronal nAChR ligand. SIB-1553A free base is a cognitive enhancer, and has therapeutic potential for the symptomatic treatment of Alzheimer’s disease and other cognitive disorders[1][2].

[1] Vernier JM, et al. 4-[[2-(1-Methyl-2-pyrrolidinyl)ethyl]thio]phenol hydrochloride (SIB-1553A): a novel cognitive enhancer with selectivity for neuronal nicotinic acetylcholine receptors. J Med Chem. 1999 May 20;42(10):1684-6. DOI:10.1021/jm990035d
[2] Rao TS, et al. In vitro pharmacological characterization of (+/-)-4-[2-(1-methyl-2-pyrrolidinyl)ethyl]thio]phenol hydrochloride (SIB-1553A), a nicotinic acetylcholine receptor ligand. Brain Res. 2003 Aug 15;981(1-2):85-98. DOI:10.1016/s0006-8993(03)02979-2
[3] Rao TS, et al. In vivo pharmacological characterization of (+/-)-4-[2-(1-methyl-2-pyrrolidinyl)ethyl]thiophenol hydrochloride (SIB-1553A), a novel cholinergic ligand: microdialysis studies. Brain Res. 2003 Oct 3;986(1-2):71-81. DOI:10.1016/s0006-8993(03)03174-3