Metal- and photocatalyst-free synthesis of 3-selenylindoles and asymmetric diarylselenides promoted by visible light
作者:Ignacio D. Lemir、Willber D. Castro-Godoy、Adrián A. Heredia、Luciana C. Schmidt、Juan E. Argüello
DOI:10.1039/c9ra03642c
日期:——
the synthesis of 3-selenylindoles employing diorganyl diselenides and indoles or electron-rich arenes as starting materials. Visible blue light was used to promote the reaction without employing transitionmetal complexes or organic photocatalysts as sensitizers. Additives such as strong oxidants or bases were not required. Moreover, ethanol was employed as a benign solvent under mild reaction conditions
Design, synthesis and antifungal activities of novel triazole derivatives with selenium-containing hydrophobic side chains
作者:Meng-bi Guo、Zhong-zuo Yan、Xin Wang、Hang Xu、Chun Guo、Zhuang Hou、Ping Gong
DOI:10.1016/j.bmcl.2022.129044
日期:2022.12
In this work, a series of novel 1,2,4-triazole derivatives with selenium-containing hydrophobic side chains were designed and synthesized based on the structure of lanosterol 14α-demethylase (CYP51). All compounds were characterized by HRMS, 1H NMR and 13C NMR. Then, their antifungalactivities against eight human pathogenic fungi were evaluated in vitro by testing the minimal inhibitory concentrations
本工作基于羊毛甾醇 14α-脱甲基酶 (CYP51) 的结构,设计并合成了一系列具有含硒疏水侧链的新型 1,2,4-三唑衍生物。所有化合物均通过 HRMS、1 H NMR和13 C NMR进行了表征。然后,在体外评估了它们对八种人类病原真菌的抗真菌活性通过测试最小抑菌浓度。结果表明,几乎所有测试的化合物被发现比对照药物氟康唑更有效地对抗所有测试的真菌菌株。进一步的机理研究表明,目标化合物具有真菌CYP51抑制活性。同时,代表性化合物显示出对哺乳动物细胞系的低细胞毒性作用。此外,对接结果表明,目标化合物与白色念珠菌CYP51 的结合模式优于氟康唑,尤其是在狭窄的疏水裂缝中。总的来说,可以进一步开发具有含硒疏水侧链的新型 1,2,4-三唑衍生物,用于治疗侵袭性真菌感染。
Synthesis of Selenium Derivatives using Organic Selenocyanates as Masked Selenols: Chemical Reduction with Rongalite as a Simpler Tool to give Nucleophilic Selenides
作者:Willber Castro-Godoy、adrian A heredia、Lydia M Bouchet、Juan E. Elias Argüello、Adrian A. Heredia、Juan E. Argüello
DOI:10.1002/cplu.202400183
日期:——
The chemical reduction of alkyl, aryl, and benzyl selenocyanates, as masked selenols, using Rongalite is investigated. As a result, the corresponding diselenides were obtained selectively in very good to excellent yields. Additionally, a simple methodology is described using the in-situ generated benzyl selenolate anion to promote nucleophilic substitution, epoxide ring opening, and Michael addition
Lead optimization generates selenium-containing miconazole CYP51 inhibitors with improved pharmacological profile for the treatment of fungal infections