1-(2-Aminoethyl)-3-(arylsulfonyl)-1H-indoles as novel 5-HT6 receptor ligands
摘要:
Novel 1-(2-aminoethyl)-3-(arylsulfonyl)-1H-indoles were prepared. Binding assays indicated they are 5-HT6 receptor ligands, among which N,N-dimethyl-N-{2-[3-(1-naphthylsulfonyl)-1H-indol-1-yl]ethyl}amine 8t and N-methyl-N-{2-[3-(1-naphthylsulfonyl)-1H-indol-1-yl]ethyl}amine 8u showed high affinity for 5-HT6 receptors with K-i = 3.7 and 5.7nM, respectively. (C) 2004 Elsevier Ltd. All rights reserved.
1-(2-Aminoethyl)-3-(arylsulfonyl)-1H-indoles as novel 5-HT6 receptor ligands
摘要:
Novel 1-(2-aminoethyl)-3-(arylsulfonyl)-1H-indoles were prepared. Binding assays indicated they are 5-HT6 receptor ligands, among which N,N-dimethyl-N-{2-[3-(1-naphthylsulfonyl)-1H-indol-1-yl]ethyl}amine 8t and N-methyl-N-{2-[3-(1-naphthylsulfonyl)-1H-indol-1-yl]ethyl}amine 8u showed high affinity for 5-HT6 receptors with K-i = 3.7 and 5.7nM, respectively. (C) 2004 Elsevier Ltd. All rights reserved.
Exploring a potential catalyst system for catalyst‐controlled selectivity in C−Sbondformation is a fascinating challenge. Herein, we described two novel and highlyefficient methods for the selectivesynthesis of C2‐ and C3‐sulfonylindoles showing good biological activities by employing iodide and copper catalysts, respectively. Mechanistic studies point to the crucial role of the electronic properties
Sulfonylation of aromatic compounds with sulfonic acids using silica gel-supported AlCl<sub>3</sub>as a heterogeneous Lewis acid catalyst
作者:Kaveh Parvanak Boroujeni
DOI:10.1080/17415991003777391
日期:2010.6
Silica gel-supported aluminum chloride (SiO2–AlCl3) has been shown to be a mild, efficient, and chemoselective heterogeneous Lewis acid catalyst for direct conversion of arenes to sulfones usingsulfonicacids as sulfonylating agents. The catalyst can be prepared easily with cheap starting materials and is stable (as a bench-top catalyst) and reusable.
Transition-Metal-Free Selective Oxidative C(sp<sup>3</sup>)–S/Se Coupling of Oxindoles, Tetralone, and Arylacetamides: Synthesis of Unsymmetrical Organochalcogenides
作者:Ch. Durga Prasad、Moh. Sattar、Sangit Kumar
DOI:10.1021/acs.orglett.6b03735
日期:2017.2.17
selenides from the sp3-C–H bond of oxindole, tetralone, arylacetamide, and aryl chalcogenide precursors. Sulfones were obtained from sodium sulfinates usingpotassium iodide, tert-butyl hydroperoxide in DMSO, and acetic acid. Sulfides and selenides were prepared from diaryl disulfides or diselenides employing potassium tert-butoxide in DMSO. α-Tetralone underwent concomitant chalcogenation and aromatization
Polystyrene Supported Al(OTf)<sub>3</sub>: a Stable, Efficient, Selective, and Reusable Catalyst for Sulfonylation of Arenes with Sulfonic Acids
作者:Kaveh Parvanak Boroujeni
DOI:10.5012/bkcs.2010.31.7.1887
日期:2010.7.20
supported aluminium triflate (Ps-Al(OTf)3) was found to be an efficient and chemoselective heterogeneous Lewis acid catalyst for the direct conversion of arenes to sulfones using sulfonic acids as sulfonylating agents. The solid acid catalyst is stable (as a bench top catalyst) and can be easily recovered and reused without appreciable change in its efficiency.