Synthesis, biological evaluation, and docking studies of novel thiourea derivatives of bisindolylmethane as carbonic anhydrase II inhibitor
摘要:
This article describes discovery of 29 novel bisindolylmethanes consisting of thiourea moiety, which had been synthesized through three steps. These novel bisindolylmethane derivatives evaluated for their potential inhibitory activity against carbonic anhydrase (CA) II. The results for in vitro assay of carbonic anhydrase II inhibition activity showed that some of the compounds are capable of suppressing the activity of carbonic anhydrase II. Bisindoles having halogen at fifth position showed better inhibitory activity as compared to unsubstituted bisindoles. Derivatives showing inhibition activity docked to further, understand the binding behavior of these compounds with carbonic anhydrase II. Docking studies for the active compound 3j showed that nitro substituent at para position fits into the core of the active site. The nitro substituent of compound 3j is capable of interacting with Zn ion. This interaction believed to be the main factor causing inhibition activity to take place. (C) 2015 Elsevier Inc. All rights reserved.
One-pot Tandem Reactions for Direct Conversion of Thiols and Disulfides to Sulfonic Esters, Alcohols to Bis(indolyl)methanes and Synthesis of Pyrroles Catalyzed by N-Chloro Reagents
convenient synthesis of sulfonic esters from thiols and disulfides has been described. In situ preparation of sulfonyl chlorides from thiols is accomplished by oxidation with Chloramin-T, tetra-butylammonium chloride (t-Bu4NCl) and water. The sulfonyl chlorides are then further allowed to react with phenol derivatives in the same reaction vessel. Also, a facile synthesis of bis(indolyl)methanes from alcohols
An Unexpected C–C Bond Cleavage of Acetophenones: Synthesis of Bis(heteroaryl)arylmethanes and Triarylmethanes via SeO2/Lanthanide Chloride Catalyzed Friedel–Crafts Arylation
作者:H. Meshram、G. Kumar、A. Kumar、A. Swetha、B. Babu
DOI:10.1055/s-0035-1560808
日期:——
A novel synthesis of bisheteroarylaryl methanes and triarylmethanes is described by the selective C–C bond cleavage of acetophenones in the presence of SeO2/lanthanide chlorides. The present strategy provides an in situ generation of aldehydes from acetophenones followed by a double Friedel–Crafts reaction of electron-rich arenes. Natural product 1,1,1-tris(3-indolyl)methane is synthesized in a single
Succinimidinium hydrogensulfate ([H-Suc]HSO4) as a new, green and efficient ionic liquid catalyst for the synthesis of tetrahydrobenzimidazo[2,1-b]quinazolin-1(2H)-one, 1-(benzothiazolylamino)phenylmethyl-2-naphthol, 1, 8-dioxo-octahydroxanthene and bis(indolyl)methane derivatives
作者:Omid Goli-Jolodar、Farhad Shirini
DOI:10.1007/s13738-016-0822-1
日期:2016.6
In this work, succinimidinium hydrogensulfate ([H-Suc]HSO4), a newly reported Brönsted acidic ionic liquid, is used as an efficient and reusable catalyst in the synthesis of tetrahydrobenzimidazo[2,1-b]quinazolin-1(2H)-ones, 1-(benzothiazolylamino)phenylmethyl-2-naphthols, 1,8-dioxo-octahydroxanthenes and bis(indolyl)methanes. All reactions were performed during relatively short reaction times with
在这项工作中,新报道的布朗斯台德酸性离子液体硫酸氢琥珀酰亚胺([H-Suc] HSO 4)在合成四氢苯并咪唑并[ 2,1- b ]喹唑啉-1(2 H)中用作有效且可重复使用的催化剂。)-,1-(苯并噻唑基氨基)苯基甲基-2-萘酚,1,8-二氧-八氢氧杂蒽和双(吲哚基)甲烷。所有反应均在相对短的反应时间内进行,并具有优异的收率。通过IR,1 H NMR和13 C NMR光谱对产物的结构进行表征,并通过比较真实样品进行确认。
Two novel binuclear sulfonic-functionalized ionic liquids: Influence of anion and carbon-spacer on catalytic efficiency for one-pot synthesis of bis(indolyl)methanes
from pyrazinium, piperazinium, benzimidazolium, imidazolium mono- or di-cation containing chloride and hydrogen sulfate as counter anion under optimized conditions. It was proved that the new ionic liquids containing two sulfonic imidazole moieties with four-carbon spacer as well as hydrogen sulfate as acidic counter anion were superior to the previously reported ionic liquids.
合成了两种新的具有四碳间隔基的双核磺酸官能化离子液体,并通过FTIR,MS,1 H和13对其结构进行了表征1 H NMR; 然后确定特定任务的新型离子液体水溶液的一些物理性质和pH值。研究了它们在温和条件下的双溶剂催化活性,以合成双(吲哚基)甲烷。在优化的条件下,将这些离子液体的催化活性与衍生自吡嗪鎓,哌嗪鎓,苯并咪唑鎓,咪唑鎓单或二阳离子的氯化物和硫酸氢盐作为抗衡阴离子的某些离子液体进行了比较。事实证明,含有两个带有四个碳间隔基的磺酸咪唑部分以及硫酸氢盐作为酸性抗衡阴离子的新型离子液体优于以前报道的离子液体。
BiVO4-NPs: an efficient nano-catalyst for the synthesis of biscoumarins, bis(indolyl)methanes and 3,4-dihydropyrimidin-2(1H)-ones (thiones) derivatives
作者:Farhad Shirini、Monireh Pourghasemi Lati
DOI:10.1007/s13738-016-0959-y
日期:2017.1
4-dihydropyrimidin-2(1H)-ones (thiones) derivatives. The structures of the products were characterized by IR, 1HNMR and 13C NMR spectroscopy and comparison with the authentic samples. Easy work-up procedure, excellent yields, short reaction times and reusability of the catalyst are some advantages of this work. In addition, in this article and for the first time, the preparation of 3,4-dihydropyrimidin-2(1H)-ones
BiVO 4 -NPs可用作促进双香豆素,双(吲哚基)甲烷和3,4-二氢嘧啶-2(1 H)-ones(thiones)衍生物合成的有效且可重复使用的纳米催化剂。产物的结构通过IR,1 H NMR和13 C NMR光谱表征,并与真实样品进行比较。简便的后处理程序,优异的收率,较短的反应时间和催化剂的可重复使用性是这项工作的一些优势。另外,在本文中并且首次报道了从醛的被保护的衍生物包括肟,半咔唑酮和1,1-二乙酸酯制备3,4-二氢嘧啶-2(1 H)-酮和-硫酮的报道。