Discovery of Tyk2 inhibitors via the virtual site-directed fragment-based drug design
摘要:
In this study, we synthesized compound 12 with potent Tyk2 inhibitory activity from FBDD study and carried out a cell- based assay for Tyk2/STAT3 signaling activation upon IFN alpha 5 stimulation. Compound 12 completely suppressed the IFN alpha 5-mediated Tyk2/STAT3 signaling pathway as well as the basal levels of pSTAT3. Stimulation with IFN alpha/beta leads to the tyrosine phosphorylation of the JAK1 and Tyk2 receptor-associated kinases with subsequent STATs activation, transmitting signals from the cell surface receptor to the nucleus. In conclusion, the potency of compound 12 to interrupt the signal transmission of Tyk2/STAT3 appeared to be equivalent or superior to that of the reference compound. (C) 2015 Elsevier Ltd. All rights reserved.
N-Alkylhydrazones of aliphatic ketones in the synthesis of 1,3,4-trisubstituted non-symmetric pyrazoles
摘要:
Reactions of N-alkylhydrazones of aliphatic ketones with the Vilsmeier-Haack reagent (DMF-POCl3) were evaluated as a promising approach toward the synthesis of trisubstituted non-symmetric pyrazoles. It was found that either 1,3,4-trialkylpyrazoles or 1,3-dialkylpyrazole-4-carbaldehydes could be obtained in these transformations in high yields (72-83%), in a regioselective manner. (C) 2014 Elsevier Ltd. All rights reserved.
SUBSTITUTED PYRAZOLE INHIBITORS OF C-MET PROTEIN KINASE
申请人:Li Pan
公开号:US20100305155A1
公开(公告)日:2010-12-02
The present invention relates to compounds of formula I, which is useful in the inhibition of c-Met protein kinase. The invention also provides pharmaceutically acceptable compositions comprising compounds of formula I and methods of using the compositions in the treatment of proliferative disorders.
2‐Oxabicyclo[2.1.1]hexanes: Synthesis, Properties, and Validation as Bioisosteres of <i>ortho</i>‐ and <i>meta</i>‐Benzenes
作者:Vadym V. Levterov、Yaroslav Panasiuk、Oleh Shablykin、Oleksandr Stashkevych、Kateryna Sahun、Artur Rassokhin、Iryna Sadkova、Dmytro Lesyk、Anna Anisiforova、Yuliia Holota、Petro Borysko、Iryna Bodenchuk、Nataliya M. Voloshchuk、Pavel K. Mykhailiuk
DOI:10.1002/anie.202319831
日期:2024.5.6
substituted 2-oxabicyclo[2.1.1]hexanes has been developed. The obtained compounds have been incorporated into the structure of five drugs and three agrochemicals, and have been validated biologically as bioisosteres of ortho- and meta-benzenes.
N-Alkylhydrazones of aliphatic ketones in the synthesis of 1,3,4-trisubstituted non-symmetric pyrazoles
作者:Sergey P. Ivonin、Bohdan B. Kurpil’、Eduard B. Rusanov、Oleksandr O. Grygorenko、Dmitry M. Volochnyuk
DOI:10.1016/j.tetlet.2014.02.058
日期:2014.4
Reactions of N-alkylhydrazones of aliphatic ketones with the Vilsmeier-Haack reagent (DMF-POCl3) were evaluated as a promising approach toward the synthesis of trisubstituted non-symmetric pyrazoles. It was found that either 1,3,4-trialkylpyrazoles or 1,3-dialkylpyrazole-4-carbaldehydes could be obtained in these transformations in high yields (72-83%), in a regioselective manner. (C) 2014 Elsevier Ltd. All rights reserved.
Discovery of Tyk2 inhibitors via the virtual site-directed fragment-based drug design
作者:Woo Dae Jang、Jun-Tae Kim、Hoon Young Son、Seung Yeon Park、Young Sik Cho、Tae-sung Koo、Hyuk Lee、Nam Sook Kang
DOI:10.1016/j.bmcl.2015.07.037
日期:2015.9
In this study, we synthesized compound 12 with potent Tyk2 inhibitory activity from FBDD study and carried out a cell- based assay for Tyk2/STAT3 signaling activation upon IFN alpha 5 stimulation. Compound 12 completely suppressed the IFN alpha 5-mediated Tyk2/STAT3 signaling pathway as well as the basal levels of pSTAT3. Stimulation with IFN alpha/beta leads to the tyrosine phosphorylation of the JAK1 and Tyk2 receptor-associated kinases with subsequent STATs activation, transmitting signals from the cell surface receptor to the nucleus. In conclusion, the potency of compound 12 to interrupt the signal transmission of Tyk2/STAT3 appeared to be equivalent or superior to that of the reference compound. (C) 2015 Elsevier Ltd. All rights reserved.