Two series of thiosemicarbazone-based iron chelators (twenty-seven compounds) were designed and synthesized using a microwave-assisted approach. Quinoline and halogenated phenyl were selected as parent scaffolds on the basis of a similarity search. The lipophilicity of the synthesized compounds was measured using HPLC and then calculated. Primary in vitro screening of the synthesized compounds was performed against eight pathogenic fungal strains. Only a few compounds showed moderate activity against fungi, and (E)-2-(quinolin-2-ylvinyl)-N,N-dimethylhydrazine-carbothioamide appeared to be more effective than fluconazole against most of the fungal strains tested. Antiproliferative activity was measured using a human colon cancer cell line (HCT-116). Several of the tested compounds showed submicromolar antiproliferative activity. Compounds were also tested for their activity related to the inhibition of photosynthetic electron transport (PET) in spinach (Spinacia oleracea L.) chloroplasts. The structure-activity relationships are discussed for all of the compounds.
Synthesis, Oxidation and Dehydro- genation of Cyclic N,O- and N,S-Acetals. Part 1. Transformation of N,S-Acetals: 3-Acyl-1,3,4-thiadiazolines
作者:László Somogyi
DOI:10.3987/com-04-10137
日期:——
Aldehyde and ketone thiosemicarbazones are synthesized and cyclized into 3-acyl-1,3,4-thiadiazolines under acylating conditions. Reactions of the 2-monosubstitutedheterocycles with oxidizing and dehydrogenating agents (KMnO 4 or for the first time with CAN, DDQ, IBDA) lead to the formation of thiadiazoles. CAN oxidation of 2,2-disubstituted 3-acyl-1,3,4-thiadiazolines regenerates the parent ketones
醛和酮缩氨基硫脲在酰化条件下合成并环化成 3-酰基-1,3,4-噻二唑啉。2-单取代杂环与氧化剂和脱氢剂(KMnO 4 或首次与 CAN、DDQ、IBDA)反应导致形成噻二唑。2,2-二取代 3-acyl-1,3,4-thiadiazolines 的 CAN 氧化可有效地再生母体酮。
Aryl thiosemicarbazones for the treatment of trypanosomatidic infections
作者:Pasquale Linciano、Carolina B. Moraes、Laura M. Alcantara、Caio H. Franco、Bruno Pascoalino、Lucio H. Freitas-Junior、Sara Macedo、Nuno Santarem、Anabela Cordeiro-da-Silva、Sheraz Gul、Gesa Witt、Maria Kuzikov、Bernhard Ellinger、Stefania Ferrari、Rosaria Luciani、Antonio Quotadamo、Luca Costantino、Maria Paola Costi
DOI:10.1016/j.ejmech.2018.01.043
日期:2018.2
interesting activity against the same organisms. The compounds were particularly effective against T. brucei and T. cruzi. Among the 28 synthesized compounds, the best one was (E)-2-(4-((3.4-dichlorobenzyl)oxy)benzylidene) hydrazinecarbothioamide (A14) yielding a comparable anti-parasitic activity against the three parasitic species (TbEC50 = 2.31 μM, LiEC50 = 6.14 μM, TcEC50 = 1.31 μM) and a Selectivity Index
been synthesized and its inhibitory properties toward activity diphenolase of mushroom tyrosinase and their ability to inhibition of melanogenesis in B16F10 murine, melanoma cell line have been investigated. The molecular docking to the active site of the enzyme has been also performed to investigate the nature of enzyme-inhibitor interactions. The obtained outcomes allowed us to perform SAR analysis
New biologically dynamic hybrid pharmacophore triazinoindole-based-thiadiazole as potent α-glucosidase inhibitors: In vitro and in silico study
作者:Aftab Ahmad Khan、Fazal Rahim、Muhammad Taha、Wajid Rehman、Naveed Iqbal、Abdul Wadood、Nisar Ahmad、Syed Adnan Ali Shah、Mohammed M. Ghoneim、Sultan Alshehri、Mohammed Salahuddin、Khalid Mohammed Khan
DOI:10.1016/j.ijbiomac.2021.12.147
日期:2022.2
potent analogue in the series with fifteen folds more active than standard acarbose. Structureactivity relationship (SAR) studies suggested that α-glucosidase activities of triazinoindole bearing thiadiazole are primarily dependent upon on number and position of different substitutions present on phenyl parts. Molecular docking study were conducted of the optimized compounds (i.e., compound 4, 6, and