Design, Synthesis, and Melatoninergic Activity of New Azido- and Isothiocyanato-Substituted Indoles
摘要:
To develop irreversibly binding ligands for the melatonin receptor(s) as tools for tracing the primary melatonin binding site, we report on the design and synthesis of new melatoninergic azido- and isothiocyanato-substituted indoles. All active compounds were partial agonists or antagonists in the Xenopus melanophore assay, the most potent being the 5-OMe C3-substituted azido 45 and isothiocyanato 46 analogues.
Direct, One-Step Synthesis of Condensed Heterocycles: A Palladium-Catalyzed Coupling Approach
作者:Farnaz Jafarpour、Mark Lautens
DOI:10.1021/ol061404k
日期:2006.8.1
[reaction: see text] A palladium-catalyzed one-stepsynthesis of fused aromatic heterocycles from bifunctional bromoenoates or bromoalkyl indoles and iodoarenes is reported. This method provides an efficient route to a wide variety of substituted polycyclic aromatic and heteroaromatic compounds from readily accessible starting materials.
Bioconjugation with Thiols by Benzylic Substitution
作者:Kenji Watanabe、Takashi Ohshima
DOI:10.1002/chem.201706149
日期:2018.3.15
A benzylic substitution of 3‐indolyl(hydroxyl)acetate derivatives with thiols proceeded specifically in the presence of amino, carboxy, and phosphate groups in weakly acidic aqueoussolutions under nearly physiological condition, while no reaction occurred at pH over 7. Kinetic studies revealed that the reaction followed second‐order kinetics (first‐order in the reactant and first‐order in thiol) in
在弱酸性水溶液中,在接近生理条件下,氨基,羧基和磷酸酯基团的存在下,3-氨基吲哚基(羟基)乙酸酯衍生物被苄基取代的过程特别是在氨基,羧基和磷酸基团存在的情况下进行,而在pH超过7的条件下没有反应发生。动力学研究表明与醇的常见苄基取代的S N 1机理相反,该反应遵循二级动力学(反应物中的一级动力学和硫醇中的一级动力学)。使用几种模型蛋白,例如溶菌酶,胰岛素,胰蛋白酶和血清白蛋白,证明了本方法对生物大分子进行功能化的效用。修饰后,溶菌酶在溶菌微球菌细胞裂解中的催化生物活性被完全保留。
Substituent Effects on Photosensitized Splitting of Thymine Cyclobutane Dimer by an Attached Indole
作者:Wenjian Tang、Hongmei Zhou、Jing Wang、Chunxiao Pan、Jingbo Shi、Qinhua Song
DOI:10.1002/cphc.201200652
日期:2012.12.21
In chromophore‐containing cyclobutane pyrimidine dimer (CPD) model systems, solvent effects on the splitting efficiency may depend on the length of the linker, the molecular conformation, and the oxidation potential of the donor. To further explore the relationship between chromophore structure and splitting efficiency, we prepared a series of substituted indole–T<>T model compounds 2 a–2 g and measured
Novel Triazoles with Potent and Broad-Spectrum Antifungal Activity In Vitro and In Vivo
作者:Panhu Zhu、Tao Zhou、Hong Chen、Xingru Chen、Xiaobing Wang、Lingyi Kong、Minghua Yang
DOI:10.1021/acs.jmedchem.3c00266
日期:2023.6.8
and CYP51. To explore noveltriazoleantifungalagents, we synthesized three series of fluconazole-core compounds and focused on optimizing the chain based on molecule docking and in vitro results. The most potent S-F24 exhibited excellent broad-spectrum antifungal activity that was better or comparable to clinically used azoles. S-F24 maintained its potency even against multi-resistant Candida albicans
[Graphics]A norbornene-mediated palladium-catalyzed sequence is described in which an alkyl-aryl bond and an aryl-heteroaryl bond are formed in one reaction vessel. The aryl-heteroaryl bond-forming step occurs via a direct arylation reaction. A number of six-, seven-, and eight-membered ring-annulated indoles, pyrroles, pyrazoles, and azaindoles were synthesized from the corresponding bromoalkyl azole and an aryl iodide.