Novel quinoline–imidazolium adducts via the reaction of 2-oxoquinoline-3-carbaldehyde and quinoline-3-carbaldehydes with 1-butyl-3-methylimidazolium chloride [BMIM][Cl]
摘要:
A library of hydroxyquinolin-3-ylmethylimidazolium adducts were prepared in high yields from the reaction of [BMIM][Cl] with various substituted quinoline-3-carbaldehydes and 2-oxoquinoline-3-carbaldehydes under mild conditions by using sodium acetate in MeCN under ultrasound irradiation. The use of sodium acetate and imidazolium chloride was crucial for the success of these C C bond forming reactions. Attempted coupling with thiazolium bromide led instead to quinoline-3-carboxylic acid. (C) 2014 Elsevier Ltd. All rights reserved.
一种高效,无催化剂的单锅三组分方法,用于合成新型和富氮的二氢吡啶并[2,3- d ]嘧啶和带有喹啉的二氢-1H-吡唑并[3,4- b ]吡啶提供了药效团片段。在微波辐射下,甲酰喹啉衍生物,伯杂环胺和环状1,3-二酮的三组分混合物在DMF中进行反应。有趣的是,当将常规的回流加热用于起始5-氨基-1-苯基吡唑时,获得了相应的芳香化吡唑并吡啶作为主要产物。单晶X射线分析清楚地证实了二氢和芳构化产物的结构。
This paper presents the synthesis and characterization of two series of new bis-quinolin curcuminoid BF2-complexes 11 and their respective decomplexed bis-quinolin curcuminoid derivatives 12, in an attempt to understand their optical properties. The synthesized compounds showed interesting fluorescent characteristics in both solution and in solid-state. The characteristic of the electronic transitions
A Schmidt rearrangement-mediated synthesis of novel tetrahydro-benzo[1,4]diazepin-5-ones as potential anticancer and antiprotozoal agents
作者:Daniel Insuasty、Sara M. Robledo、Iván D. Vélez、Paola Cuervo、Braulio Insuasty、Jairo Quiroga、Manuel Nogueras、Justo Cobo、Rodrigo Abonia
DOI:10.1016/j.ejmech.2017.10.024
日期:2017.12
NaN3/H2SO4 reaction conditions. Twelve of the obtained compounds were in vitro screened by the US National Cancer Institute (NCI) for their ability to inhibit 60 different human tumor cell lines, where compound 24a presented a remarkable activity against 58 of the 60 cancer cell lines, with the most important GI50 values ranging from 0.047 to 8.16 μM and LC50 values ranging from 9.4 to > 100 μM. Additionally
通过施密特重排反应,由相应的1,2,3,4-tetrahydro-4合成了新颖的四氢-5 H-苯并[ e ] [1,4]二氮杂5-5-酮,其中几个含有喹啉药效团。NaN 3 / H 2 SO 4反应条件介导的喹诺酮类药物。美国国家癌症研究所(NCI)在体外筛选了十二种获得的化合物抑制60种不同人类肿瘤细胞系的能力,其中化合物24a对60种癌细胞系中的58种表现出显着的活性,其中最重要的是GI 50值范围从0.047至8.16μM和LC 50值范围从9.4到> 100μM。此外,其中一些被评估为抗疟药,抗锥虫病药和抗疟药。化合物22g 对恶性疟原虫的最佳抗疟疾反应为EC 50 = 13.61μg/ mL ,而化合物24d对克氏锥虫则表现出高活性。和Leishmania(V)panamensis的EC 50分别 为2.78μg/ mL和3.35μg/ mL。
Design, synthesis, and molecular docking study of novel quinoline‐based
<i>bis</i>
‐chalcones as potential antitumor agents
作者:Daniel Insuasty、Stephanie García、Rodrigo Abonia、Braulio Insuasty、Jairo Quiroga、Manuel Nogueras、Justo Cobo、Gabriela L. Borosky、Kenneth K. Laali
DOI:10.1002/ardp.202100094
日期:2021.9
A novel series of quinoline-based symmetrical and unsymmetrical bis-chalcones was synthesized via a Claisen–Schmidt condensation reaction between 3-formyl-quinoline/quinolone derivatives with acetone or arylidene acetones, respectively, by using KOH/MeOH/H2O as a reaction medium. Twelve of the obtained compounds were evaluated for their in vitro cytotoxic activity against 60 different human cancer
A new strategy for ultrasensitive sensing of cations and anions based on the control of C=Nisomerization has been developed. Imine-derived ligand L, is non-fluorescent due to the C=Nisomerization...
A highly selective and sensitive fluorescent chemosensor for Zn<sup>2+</sup>based on a diarylethene derivative
作者:Erting Feng、Yayi Tu、Congbin Fan、Gang Liu、Shouzhi Pu
DOI:10.1039/c7ra09966e
日期:——
A promising photochromic fluorescentchemosensor 1o linked with Schiff base unit was synthesized. It displayed outstanding photochromism and a superb fluorescence turn-on response toward Zn2+. Upon the addition of Zn2+ to 1o, the fluorescent color of the solution obviously changed from blue to bright green with a 27-fold fluorescent intensity increase. The combination of 1o–Zn2+ with 1 : 1 stoichiometry