Rigidized 1-aryl sulfonyl tryptamines: Synthesis and pharmacological evaluation as 5-HT6 receptor ligands

被引:21
作者
Nirogi, Ramakrishna [1 ]
Dwarampudi, Adireddy [1 ,2 ]
Kambhampati, Ramasastry [1 ]
Bhatta, Venugopalarao [1 ]
Kota, Laxman [1 ]
Shinde, Anil [1 ]
Badange, Rajesh [1 ]
Jayarajan, Pradeep [1 ]
Bhyrapuneni, Gopinadh [1 ]
Dubey, P. K. [2 ]
机构
[1] Suven Life Sci Ltd, Discovery Res, Hyderabad 500034, Andhra Pradesh, India
[2] Jawaharlal Nehru Technol Univ Hyderabad, Dept Chem, Hyderabad 500085, Andhra Pradesh, India
关键词
5-HT6R antagonist; SAR; NORT; Water maze; BINDING; 5-HYDROXYTRYPTAMINE-6; AGENTS; RAT;
D O I
10.1016/j.bmcl.2011.05.106
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
A series of N-1-arylsulfonyl-3-(pyrrolidin-3-yl)-1H-indole and N-1-arylsulfonyl-3-(4-chloro-2,5-dihydro-1H-pyrrol-3-yl)-1H-indole derivatives (tryptamine derivatives with rigidized side chain) have been prepared and tested for their binding affinity to 5-HT6 receptor. Several compounds displayed potent binding affinity for the 5-HT6 receptor when tested in in vitro binding assay. The primary SAR indicates that rigidification of dimethylamino alkyl chain at C-3 of indole carbon maintains the binding affinity to 5-HT6R. The lead compound N-1-benzenesulfonyl-3-(4-chloro-1-methyl-2,5-dihydro-1H-pyrrol-3-yl)-1H-indole, 10a (K-b = 0.1 nM) has shown excellent in vitro affinity and was active in animal models of cognition like NORT and water maze. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4577 / 4580
页数:4
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