A series of rhodanine derivatives was prepared. The synthetic approach, analytical and spectroscopic data of all synthesized compounds are presented. Lipophilicity of all the discussed rhodanine derivatives was analyzed using the RP-HPLC method. The compounds were tested for their ability to inhibit photosynthetic electron transport (PET) in spinach (Spinacia oleracea L.) chloroplasts and reduce chlorophyll content in freshwater alga Chlorella vulgaris. Structure-activity relationships between the chemical structure, physical properties and biological activities of the evaluated compounds are discussed. For majority of the tested compounds the lipophilicity of the compound and not electronic properties of the R1 substituent were decisive for PET-inhibiting activity. The most potent PET inhibitor was (5Z)-5-(4-bromobenzylidene)-2-thioxo-1,3-thiazolidin-4-one (IC50 = 3.0 μmol/L) and the highest antialgal activity was exhibited by (5Z)-5-(4-chlorobenzylidene)-2-thioxo-1,3-thiazolidin-4-one (IC50 = 1.3 μmol/L).
Synthesis, antidiabetic activity and molecular docking study of rhodanine-substitued spirooxindole pyrrolidine derivatives as novel α-amylase inhibitors
sustained search for novel α-amylase inhibitors for the treatment of type 2 diabetes mellitus (T2DM), we report herein the synthesis of a series of nineteen novel rhodanine-fused spiro[pyrrolidine-2,3’-oxindoles]. They were obtained by one-pot three component [3+2] cycloaddition of stabilized azomethine ylides, generated in situ by condensation of glycine methyl ester and the cyclic ketones 1H-indole-2,3-dione
Copper(II)-complex functionalized magnetite nanoparticles: a highly efficient heterogeneous nanocatalyst for the synthesis of 5-arylidenthiazolidine-2,4-diones and 5-arylidene-2-thioxothiazolidin-4-one
Magnetite nanoparticles (MNPs) have proved to be a useful support for heterogeneous catalysis. We have synthesized Fe3O4 MNPs functionalized with a copper(II) complex, and tested the resulting material as a heterogeneous nanocatalyst. The catalyst was tested for aldol condensation reactions between aliphatic/aromatic aldehydes and rhodanine or thiazolidine-2,4-dione (TZD) derivatives under reflux in
磁铁矿纳米颗粒 (MNPs) 已被证明是多相催化的有用载体。我们已经合成了用铜 (II) 络合物功能化的 Fe3O4 MNP,并测试了所得材料作为非均相纳米催化剂。对该催化剂进行了脂肪族/芳香族醛与若丹宁或噻唑烷-2,4-二酮(TZD)衍生物在乙醇中回流的羟醛缩合反应测试,得到了高产率的目标产物。环境友好的化学、反应时间短、后处理简单、产率高以及新型纳米催化剂的可重复使用性是本研究的有益特征。通过扫描电子显微镜、振动样品磁强计、热重法、X 射线衍射和能量色散 X 射线分析表征纳米催化剂。
A facile synthesis of (Z)-5-(substituted)-2-(methylthio)thiazol-4(5H)-one using microwave irradiation and conventional method
作者:Dattatraya N. Pansare、Devanand B. Shinde
DOI:10.1016/j.tetlet.2013.12.113
日期:2014.1
A new effective approach to the synthesis of some new (Z)-5-(substituted)-2-thioxothiazolidin-4-one 3a–l and (Z)-5-(substituted)-2-(methylthio)thiazol-4(5H)-one 5a–l is reported under microwaveirradiation as well as conventional conditions.
antifungal evaluation of new 5‐arylidene‐(Z)‐2‐dimethylamino‐1,3‐thiazol‐4‐ones 4a–f, obtained by the reaction of aromatic aldehydes 1 and rhodanine 2 followed by treatment with DMF. All compounds were tested against a panel of yeasts, hialohyphomycetes, and dermatophytes using the microbroth dilution method. Compounds 4a and 4c showed antifungal activity, with compound 4a being the most active one