Synthesis of 1H-1,2,3-triazoles and Study of their Antifungal and Cytotoxicity Activities
作者:Iara da Silva、Prisicila Martins、Emanuelly da Silva、Sabrina Ferreira、Vitor Ferreira、Karen C. da Costa、Marne de Vasconcellos、Emerson Lima、Fernando C. da Silva
DOI:10.2174/1573406411309080010
日期:2013.10.1
We report herein the results of antifungal activity of fifteen 1,2,3-triazoles against Candida albicans, Candida
krusei, Candida parapsilosis, Candida kefyr, Candida tropicalis, Candida dubliniensis, Tricophyton rubrum, Microporum
canis and Aspergillus niger. All of the 1,2,3-triazoles were prepared from 1,3-dipolar cyclizations between aryl azides and
alkynes catalyzed by Cu(I), and several of the compounds exhibited antifungal activity with low cytotoxicity. The results
demonstrated the potential and importance of developing new 1,2,3-triazoles compounds with antifungal activity.
Synthesis and evaluation of the cytotoxic activity of Furanaphthoquinones tethered to 1H-1,2,3-triazoles in Caco-2, Calu-3, MDA-MB231 cells
作者:Dora C.S. Costa、Gabriella Silva de Almeida、Vitor Won-Held Rabelo、Lucio Mendes Cabral、Plínio Cunha Sathler、Paula Alvarez Abreu、Vitor Francisco Ferreira、Luiz Cláudio Rodrigues Pereira da Silva、Fernando de C. da Silva
DOI:10.1016/j.ejmech.2018.07.018
日期:2018.8
are structural pharmacophore that is known to impart several cancer cells. This work shows a synthetic methodology to obtain hybrid molecules involving naphthoquinone and triazol scaffold as multiple ligands. A simple and efficient synthetic route was used to prepare a series of sixteen compounds being eight 2-(1-aryl-1H-1,2,3-triazol-4-yl)-2,3-dihydronaphtho[1,2 b]furan-4,5-diones and eight 2-(1-aryl-1H-1
萘醌和1,2,3-三唑是已知可赋予几种癌细胞的结构药效团。这项工作显示了一种合成方法,可获得涉及萘醌和三唑支架作为多个配体的杂合分子。一种简单有效的合成方法用于制备一系列十六种化合物,即八种2-(1-芳基-1 H -1,2,3-三唑-4-基)-2,3-二氢萘并[1,2 b ]呋喃-4,5-二酮和八个2-(1-芳基-1 H -1,2,3-三唑-4-基)-2,3-二氢萘并[2,3- b ]呋喃-4,9 -diones。这些化合物已在MDA-MB231,Caco-2和Calu-3人类癌细胞中进行了测试,其中7a在本研究中最敏感的细胞系Caco-2细胞上,它是最有选择性的化合物。计算机研究表明,拓扑异构酶I和IIα的阻断可能是7a在Caco-2细胞中产生细胞毒性作用的作用机制之一。
Stitching Triazoles to Arenes via a Transition Metal-Free Aryne Diels–Alder/1,3-Prototropic Shift/Dehydrobromination Cascade
transition metal-catalyzed C–H/C–X arylation of the preinstalled triazoles at a very high temperature. Herein, a transition metal-free direct synthesis via an aryne Diels–Alder/1,3-prototropic shift/dehydrobromination cascade is reported. This method gives access to triazole-fused aromatics as well as the corresponding dihydrocarbocycles under mild reaction conditions.
Novel 1,2,3-Triazole Derivatives for Use against <i>Mycobacterium tuberculosis</i> H37Rv (ATCC 27294) Strain
作者:Nubia Boechat、Vitor F. Ferreira、Sabrina B. Ferreira、Maria de Lourdes G. Ferreira、Fernando de C. da Silva、Monica M. Bastos、Marilia dos S. Costa、Maria Cristina S. Lourenço、Angelo C. Pinto、Antoniana U. Krettli、Anna Caroline Aguiar、Brunno M. Teixeira、Nathalia V. da Silva、Priscila R. C. Martins、Flavio Augusto F. M. Bezerra、Ane Louise S. Camilo、Gerson P. da Silva、Carolina C. P. Costa
DOI:10.1021/jm2003624
日期:2011.9.8
The purpose of this study was to prepare various 4-substituted N-phenyl-1,2,3-triazole derivatives using click chemistry. The derivatives were screened in vitro for antimicrobial activity against Mycobacterium tuberculosis strain H37Rv (ATCC 27294) using the Alamar Blue susceptibility test. The activity was expressed as the minimum inhibitory concentration (MIC) in mu g/mL (mu M). Derivatives of isoniazid (INH), (E)-N'-[(1-aryl)-1H-1,2,3-triazole-4-yl)methylene] isonicotinoyl hydrazides, exhibited significant activity with MIC values ranging from 2.5 to 0.62 mu g/mL. In addition, they displayed low cytotoxicity against liver cells (hepatoma HepG2) and kidney cells (BGM), thereby providing a high therapeutic index. The results demonstrated the potential and importance of developing new INH derivatives to treat mycobacterial infections.