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.
Catalyst-free assembly of giant tris(heteroaryl)methanes: synthesis of novel pharmacophoric triads and model sterically crowded tris(heteroaryl/aryl)methyl cation salts
作者:Rodrigo Abonia、Luisa F Gutiérrez、Braulio Insuasty、Jairo Quiroga、Kenneth K Laali、Chunqing Zhao、Gabriela L Borosky、Samantha M Horwitz、Scott D Bunge
DOI:10.3762/bjoc.15.60
日期:——
A series of giant tris(heteroaryl)methanes are easily assembled by one-pot three-componentsynthesis by simple reflux in ethanol without catalyst or additives. Diversely substituted indoles (Ar1) react with quinolinealdehydes, quinolone aldehydes, chromone aldehydes, and fluorene aldehydes (Ar2CHO) and coumarins (Ar3) in 1:1:1 ratio to form the corresponding tris(heteroaryl)methanes (Ar1Ar2Ar3)CH
通过在乙醇中简单回流,无需催化剂或添加剂,通过一锅三组分合成可以轻松地组装一系列巨型三(杂芳基)甲烷。多取代吲哚(Ar 1 )与喹啉醛、喹诺酮醛、色酮醛、芴醛(Ar 2 CHO)和香豆素(Ar 3 )以1:1:1的比例反应生成相应的三(杂芳基)甲烷(Ar 1 Ar 2 Ar 3 )CH 以及 (Ar 1 Ar 1 Ar 2 )CH 三元组。通过取代吲哚与 Ar 2 CHO 的偶联,还合成了一系列新的 2:1 三联体。偶联反应也可以在水中(约 80 °C)进行,但化学选择性优于 (Ar 1 Ar 1 Ar 2 )CH 而不是 (Ar 1 Ar 2 Ar 3 )CH。通过X射线分析证实了代表性(Ar 1 Ar 2 Ar 3 )CH三元组的分子结构。通过与DDQ/HPF 6反应生成模型三(杂芳基/芳基)甲基鎓盐,并通过NMR、DFT和GIAO-DFT进行研究。
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。
Microwave-Assisted Synthesis of Diversely Substituted Quinoline-Based Dihydropyridopyrimidine and Dihydropyrazolopyridine Hybrids
作者:Daniel Insuasty、Rodrigo Abonia、Braulio Insuasty、Jairo Quiroga、Kenneth K. Laali、Manuel Nogueras、Justo Cobo
DOI:10.1021/acscombsci.7b00091
日期:2017.8.14
An efficient, catalyst-free, and one-pot three-component procedure for the synthesis of novel and nitrogen rich dihydropyrido[2,3-d]pyrimidines and dihydro-1H-pyrazolo[3,4-b]pyridines bearing a quinoline pharmacophore fragment is provided. Reactions proceeded in DMF under microwave irradiation of three-component mixtures of formyl-quinoline derivatives, primary heterocyclic amines and cyclic 1,3-diketones
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。
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