866001-38-9Relevant academic research and scientific papers
Discovery of Hydroxybenzothiazole Urea Compounds as Multitargeted Agents Suppressing Major Cytotoxic Mechanisms in Neurodegenerative Diseases
Abadi, Ashraf H.,Abdel-Halim, Mohammad,Aboushady, Youssef,Becker, Walter,Elhady, Ahmed K.,Engel, Matthias,Gabr, Moustafa,Salah, Mohamed,Wilms, Gerrit
, p. 4302 - 4318 (2021/11/18)
Multiple factors are causally responsible and/or contribute to the progression of Alzheimer's and Parkinson's diseases. The protein kinase Dyrk1A was identified as a promising target as it phosphorylates tau protein, α-synuclein, and parkin. The first goal of our study was to optimize our previously identified Dyrk1A inhibitors of the 6-hydroxy benzothiazole urea chemotype in terms of potency and selectivity. Our efforts led to the development of the 3-fluorobenzyl amide derivative 16b, which displayed the highest potency against Dyrk1A (IC50 = 9.4 nM). In general, the diversification of the benzylamide moiety led to an enhanced selectivity over the most homologous isoform, Dyrk1B, which was a meaningful indicator, as the high selectivity could be confirmed in an extended selectivity profiling of 3b and 16b. Eventually, we identified the novel phenethyl amide derivative 24b as a triple inhibitor of Dyrk1A kinase activity (IC50 = 119 nM) and the aggregation of tau and α-syn oligomers. We provide evidence that the novel combination of selective Dyrk1A inhibition and suppression of tau and α-syn aggregations of our new lead compound confers efficacy in several established cellular models of neurotoxic mechanisms relevant to neurodegenerative diseases, including α-syn-and 6-hydroxydopamine-induced cytotoxicities.
Design and synthesis of conformationally constraint Dyrk1A inhibitors by creating an intramolecular H-bond involving a benzothiazole core
Salah, Mohamed,Abdel-Halim, Mohammad,Engel, Matthias
, p. 1045 - 1053 (2018/06/27)
We present the development of conformationally pre-organised Dyrk1A inhibitors based on the hydroxybenzothiazole urea scaffold. The modifications introduced to the discovered hit (AHS-211) proved the crucial role of the urea linker to preserve the bioacti
6-Benzothiazolyl ureas, thioureas and guanidines are potent inhibitors of ABAD/17-HSD10 and potential drugs for Alzheimer's disease treatment: Design, synthesis and in vitro evaluation
Benek, Ondrej,Hroch, Lukas,Aitken, Laura,Dolezal, Rafael,Hughes, Rebecca,Guest, Patrick,Benkova, Marketa,Soukup, Ondrej,Musil, Karel,Kuca, Kamil,Smith, Terry K.,Gunn-Moore, Frank,Musilek, Kamil
, p. 345 - 358 (2017/06/20)
Background: The mitochondrial enzyme amyloid beta-binding alcohol dehydrogenase (ABAD) also known as 17-hydroxysteroid dehydrogenase type 10 (17-HSD10) has been connected with the pathogenesis of Alzheimer's disease (AD). ABAD/17-HSD10 is a binding site for the amyloid-beta peptide (A) inside the mitochondrial matrix where it exacerbates A toxicity. Interaction between these two proteins triggers a series of events leading to mitochondrial dysfunction as seen in AD. Methods: As ABAD’s enzymatic activity is required for mediating A toxicity, its inhibition presents a promising strategy for AD treatment. In this study, a series of new benzothiazolylurea analogues have been prepared and evaluated in vitro for their potency to inhibit ABAD/17-HSD10 enzymatic activity. The most potent compounds have also been tested for their cytotoxic properties and their ability to permeate through blood-brain barrier has been predicted. To explain the structure-activity relationship QSAR and pharmacophore studies have been performed. Results and Conclusion: Compound 12 was identified being the most promising hit compound with good inhibitory activity (IC50 = 3.06 ± 0.40 M) and acceptable cytotoxicity profile comparable to the parent compound of frentizole. The satisfactory physical-chemical properties suggesting its capability to permeate through BBB make compound 12 a novel lead structure for further development and biological assessment.
INHIBITORS OF HISTONE DEACETYLASE
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Page/Page column 118-119, (2010/02/14)
The invention relates to a series of compounds useful for inhibiting histone deacetylase (HDAC) enzymatic activity. The invention also provides a method for inhibiting histone descetylase in a cell using said compounds as well as a method for treating cell proliferative diseases and conditions using said HDAC inhibitors. Further, the invention provides pharmaceutical compositions comprising the HDAC inhibiting compounds and a pharmaceutically acceptable carrier.
