Synthesis and evaluation of substituted 4-aryloxy- and 4-arylsulfanyl-phenyl-2-aminothiazoles as inhibitors of human breast cancer cell proliferation
摘要:
Several substituted 4-aryloxy- and 4-arylsulfanyl-phenyl-2-aminothiazoles were synthesized and evaluated for cytotoxic activity against estrogen-positive, estrogen-negative, and adriamycin-resistant human breast cancer cell lines. 4-[4'-(3,4-Dichlorophenoxy)-phenyl]-thiazol-2-yl ammonium iodide demonstrated potent activity against both estrogen-positive and negative breast cancer cell lines with low micromolar (muM) GI(50) values. In addition, we have identified several 2-aminothiazoles that demonstrated selective potency for the adriamycin-resistant and estrogen-negative breast cancer cell lines. The results suggest that these 2-aminothiazoles represent lead compounds for evaluation in animal models of breast cancer. (C) 2003 Elsevier Ltd. All rights reserved.
CuI-Catalyzed Coupling Reactions of Aryl Iodides and Bromides with Thiols Promoted by Amino Acid Ligands
作者:Lei Liu、Qing-Xiang Guo、Wei Deng、Yan Zou、Ye-Feng Wang
DOI:10.1055/s-2004-825584
日期:——
Novel mild conditions for the CuI-catalyzed coupling reactions of aryl iodides and bromides with aliphatic and aromatic thiols using amino acids as the ligand are reported.
Palladium Nanoparticles Immobilized on Nanosilica Triazine Dendritic Polymer (Pd np -nSTDP) as Catalyst in the Synthesis of Mono-, Di-, and Trisulfides through C–S Cross-Coupling Reactions
A wide variety of diaryl sulfides has been synthesized in excellent yields via C–S cross-couplings of aryl/heteroaryl halides with aromatic/heteroaromatic thiols in the presence of palladiumnanoparticlesimmobilized on nanosilica triazinedendriticpolymer (Pd np -nSTDP) as a reusablecatalyst under thermal conditions and microwave irradiation. Pd np -nSTDP also showed excellent catalytic activity
Ligand-Free C-S Bond Formation Catalyzed by Copper(I) Oxide
作者:Yao Fu、Yi-Si Feng、Hua-Jian Xu、Xiao-Yang Zhao
DOI:10.1055/s-0028-1087342
日期:2008.12
An efficient ligand-free Cu 2 O-catalyzed C-S bond-formation reaction was developed. A large number of diaryl sulfides and alkylaryl sulfides could be rapidly assembled using this new reaction protocol.
开发了一种有效的无配体Cu 2 O 催化的CS 键形成反应。使用这种新的反应方案可以快速组装大量二芳基硫化物和烷基芳基硫化物。
Tridentate Hydroxy-Functionalised MCM-41-Immobilised Copper(I) Complex as an Efficient and Recyclable Catalyst for Coupling of Aryl Iodides with Thiols
作者:Fang Yao、Rongli Zhang、Yichao Wu、Mingzhong Cai
DOI:10.3184/174751915x14431129629495
日期:2015.10
The C–Scoupling reaction of aryl iodides with thiols was achieved at 110 °C in DMF/dioxane (V/V, 1:9) in the presence of a tridentate hydroxy-functionalised MCM-41-immobilised copper(I) complex [MCM-41-3OH-CuI] with Cs2CO3 as base to afford a variety of diaryl sulfides in good to excellent yields. The MCM-41-3OH-CuI catalyst can be easily recovered by a simple filtration and reused for at least six
Nickel‐Catalyzed Thiolation of Aryl Halides and Heteroaryl Halides through Electrochemistry
作者:Dong Liu、Hong‐Xing Ma、Ping Fang、Tian‐Sheng Mei
DOI:10.1002/anie.201900956
日期:2019.4
Transition‐metal‐catalyzed coupling reactions are useful tools for synthesizing aryl sulfur compounds. However, conventional transition‐metal‐catalyzed thiolation of aryl bromides and chlorides typically requires the use of strong base under elevated reaction temperature. Herein, we report the first examples of nickel‐catalyzed electrochemical thiolation of aryl bromides and chlorides in the absence