426463-09-4Relevant academic research and scientific papers
Selective catalytic hydrogenation of nitro groups in the presence of activated heteroaryl halides
Kasparian, Annie J.,Savarin, Cecile,Allgeier, Alan M.,Walker, Shawn D.
experimental part, p. 9841 - 9844 (2012/01/06)
Chemoselective reduction of nitro groups in the presence of activated heteroaryl halides was achieved via catalytic hydrogenation with a commercially available sulfided platinum catalyst. The optimized conditions employ low temperature, pressure, and catalyst loading (0.1 mol % Pt) to afford heteroaromatic amines with minimal hydrodehalogenation byproducts.
Compounds and methods for promoting smoking cessation
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, (2008/06/13)
Compounds and methods for promoting smoking cessation. The compounds may be used to treat a variety of other conditions and disease states.
5-Azidoepibatidine: An Exceptionally Potent Photoaffinity Ligand for Neuronal α4β2 and α7 Nicotinic Acetylcholine Receptors
Zhang, Nanjing,Tomizawa, Motohiro,Casida, John E.
, p. 525 - 528 (2007/10/03)
Racemic 5-azidoepibatidine [(+/-)-1] was synthesized via 5-aminoepibatidine as a candidate photoaffinity ligand with exceptionally high affinity at the mammalian neuronal nicotinic receptors (Ki values of 0.027 nM for α4β2 and 9.7 nM for α7) and excellent photoreactivity.
Synthesis, nicotinic acetylcholine receptor binding, and antinociceptive properties of 2-exo-2-(2′,3′-disubstituted 5′-pyridinyl)-7-azabicyclo[2.2.1]heptanes: Epibatidine analogues
Carroll, F. Ivy,Lee, Jeffrey R.,Navarro, Hernán A.,Ma, Wei,Brieaddy, Lawrence E.,Abraham, Philip,Damaj,Martin, Billy R.
, p. 4755 - 4761 (2007/10/03)
A number of 2′,3′-disubstituted epibatidine analogues were synthesized and evaluated in vitro for potency at nicotinic acetylcholine receptors (nAChRs) and in vivo for antinociception activity in the tail-flick and hot-plate models of acute pain and for their ability to affect core body temperature. Compounds that possessed electron-withdrawing groups (F, Cl, Br, and I) in both the 2′- and the 3′-positions showed affinities at the nAChR similar to epibatidine. However, in vivo efficacy did not correlate with affinity. 2-exo-(3′-Amino-2′-chloro-5′- pyridinyl)-7-azabicyclo-[2.2.1]heptane (2i), an epibatidine analogue possessing an electron-releasing amino group in the 3′-position, produced the highest affinity. Compound 2i was also the most selective epibatidine analogue with a Ki of 0.001 nM at αβ nAChRs, which is 26 times greater than that of epibatidine, and a αβ/α7 Ki ratio of 14 000, twice that of epibatidine. In vivo testing revealed that this compound potently inhibited nicotine-induced antinociception with AD50 values below 1 μg/kg. Surprisingly, this same compound was also an agonist at higher doses (ED50 ~20 μg/kg). Thus, the addition of the 3′-amino group to epibatidine confers potent antagonist activity to the compound with little effect on agonist activity. 2,3-Disubstituted epibatidine analogues possessing a 2′-amino group combined with a 3′-bromo or 3′-iodo group showed in vitro and in vivo nAChR properties similar to nicotine.
