Design, synthesis, and evaluation of potential inhibitors of nitric oxide synthase
作者:Tania Castaño、Arantxa Encinas、Concepción Pérez、Ana Castro、Nuria E. Campillo、Carmen Gil
DOI:10.1016/j.bmc.2008.04.036
日期:2008.6
Selective inhibitors of neuronal nitricoxidesynthase (nNOS) were shown to protect brain and may be useful in the treatment of neurodegenerative diseases. In this context, our purpose has been to design and synthesize a new family of derivatives of thiadiazoles as possible inhibitors of nNOS. To achieve it a supervised artificial neural network model has been developed for the prediction of inhibition
Synthesis of 5-(aroylamino)-2-methyl-2<i>H</i>,-1,2,4-thiadiazol-3-ones by oxidative cyclization of 1-aroyl-5-methyl-2-thiobiurets
作者:Nam Sook Cho、Hyun Il Shon、Cyril Párkányi
DOI:10.1002/jhet.5570280701
日期:1991.11
5-Aroylamino-2-methyl-2H-1,2,4-thiadiazol-3-ones 3 have been synthesized by oxidativecyclization of 1-aroyl-5-methyl-2-thiobiurets 2 with hydrogen peroxide in an alkaline solution. The needed 1-aroyl-5-methyl-2-thiobiurets 2 have been obtained through the addition of methylurea to the corresponding aroyl isothiocyanates.
通过在碱性溶液中用过氧化氢对1-芳酰基-5-甲基-2-硫代缩二脲2进行氧化环化反应,已经合成了5-芳酰基氨基-2-甲基-2 H -1,2,4-噻二唑-3-酮3。通过将甲基脲加入相应的芳酰基异硫氰酸酯中,获得了所需的1-芳酰基-5-甲基-2-硫代缩二脲2。
Non-ATP competitive glycogen synthase kinase 3β (GSK-3β) inhibitors: Study of structural requirements for thiadiazolidinone derivatives
作者:Ana Castro、Arantxa Encinas、Carmen Gil、Stefan Bräse、Williams Porcal、Concepción Pérez、Francisco J. Moreno、Ana Martínez
DOI:10.1016/j.bmc.2007.09.016
日期:2008.1
The 2,4-disubstituted thiadiazolidinones (TDZD) were described as the first non-ATP competitive GSK-3 beta inhibitors. New modifications in this heterocyclic ring are here reported to study the influence on the biological activity. The basic skeleton of 1,2,4-thiadiazole and also one of the carbonyl groups are kept, while different modifications are introduced in positions 3 and 5, respectively. The GSK-3 beta activity of the new thiadiazole derivatives here synthesized showed IC50 values for some of the compounds in the micromolar range. Additionally, ATP competition studies have been carried out, showing that as well as the first generation of TDZD, these new compounds act in a non-competitive manner. With this study, additional requirements for the biological activity of the TDZD family have been delineated. (c) 2007 Elsevier Ltd. All rights reserved.