Synthesis and pharmacological characterization of new neuronal nicotinic acetylcholine receptor ligands derived from Sazetidine-A

被引:4
作者
Liu, Yong [1 ]
Paige, Mike [1 ]
Olson, Thao T. [2 ]
Al-Muhtasib, Nour [2 ]
Xie, Teresa [2 ]
Hou, Shujie [1 ]
White, Michael P. [1 ]
Cordova, Antoinette [1 ]
Guo, Jessica L. [1 ]
Kellar, Kenneth J. [2 ]
Xiao, Yingxian [2 ]
Brown, Milton L. [1 ]
机构
[1] Georgetown Univ, Med Ctr, Ctr Drug Discovery, Washington, DC 20057 USA
[2] Georgetown Univ, Sch Med, Dept Physiol & Pharmacol, Washington, DC 20057 USA
关键词
Sazetidine A; nAChR alpha 4 beta 2; Nicotinic receptor; Click chemistry; Bioisostere; Biostere; Photoaffinity label; SUSTAINED-RELEASE BUPROPION; RANDOMIZED CONTROLLED-TRIAL; PARTIAL AGONIST; DESENSITIZING AGENT; SMOKING-CESSATION; ANALGESIC AGENT; ALPHA-4-BETA-2; POTENT; VARENICLINE; BINDING;
D O I
10.1016/j.bmcl.2014.04.036
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
The enantiomers of two analogs of Sazetidine-A as well as several other novel biosteric analogues were synthesized. Their binding affinities at three major nAChRs subtypes and selectivity profiles were determined. Though many (S)-enantiomers of Sazetidine-A analogs have high binding affinities and good subtype selectivities, it is not a general rule that (S)-enantiomers are better than their (R) counterparts. Compound 11, of which the ethynyl group was replaced by its' bioisostere-the triazole via click chemistry, showed a high binding affinity to alpha 4 beta 2 subtype (K-1 = 1.3 nM) and better selectivity to the alpha 4 beta 2 subtype over alpha 3 beta 4 subtype with that of Sazetidine-A. The azide compound 15, a potential photoaffinity label, showed improved high selectivity and similar binding property profile with that of Sazetidine-A. The biaryl analog 17 exhibited a much lower affinity as compared to Sazetidine-A indicating the importance of a 'long tail' side chain for alpha 4 beta 2 nAChR binding. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2954 / 2956
页数:3
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