A Convenient One-Pot Synthesis of Triazolopyridine and Related Heterocycle Fused-Triazole Analogs Through Copper Catalyzed Oxidative Cyclization Strategy
作者:R. Srinivasan、J. Sembian Ruso、N. S. Nagarajan、R. Senthil Kumaran、G. Manickam
DOI:10.1002/jhet.2331
日期:2016.3
One‐pot synthesis of heterocycle fused‐triazole analogs from the corresponding aldehydes and heteroarylhydrazines is demonstrated. Transformation of hydrazones to the desired systems was achieved by employing the oxidative cyclization with catalytic CuBr2 and oxone. This reaction condition is mild and selective, and a wide range of functional groups were able to sustain. An array of biologically important
作者:Maurizio Franzini、Xiaocong M. Ye、Marc Adler、Danielle L. Aubele、Albert W. Garofalo、Shawn Gauby、Erich Goldbach、Gary D. Probst、Kevin P. Quinn、Pam Santiago、Hing L. Sham、Danny Tam、Anh Truong、Zhao Ren
DOI:10.1016/j.bmcl.2013.02.043
日期:2013.4
Leucine-rich repeat kinase 2 (LRRK2) has been implicated in the pathogenesis of Parkinson's disease (PD). Inhibition of LRRK2 kinase activity is a therapeutic approach that may lead to new treatments for PD. Herein we report the discovery of a series of [1,2,4]triazolo[4,3-b]pyridazines that are potent against both wild-type and mutant LRRK2 kinase activity in biochemical assays and show an unprecedented selectivity towards the G2019S mutant. A structural rational for the observed selectivity is proposed. (C) 2013 Elsevier Ltd. All rights reserved.
Kinase domain inhibition of leucine rich repeat kinase 2 (LRRK2) using a [1,2,4]triazolo[4,3-b]pyridazine scaffold
作者:Paul Galatsis、Jaclyn L. Henderson、Bethany L. Kormos、Seungil Han、Ravi G. Kurumbail、Travis T. Wager、Patrick R. Verhoest、G. Stephen Noell、Yi Chen、Elie Needle、Zdenek Berger、Stefanus J. Steyn、Christopher Houle、Warren D. Hirst
DOI:10.1016/j.bmcl.2014.07.052
日期:2014.9
Leucine rich repeat kinase 2 (LRRK2) has been genetically linked to Parkinson's disease (PD). The most common mutant, G2019S, increases kinase activity, thus LRRK2 kinase inhibitors are potentially useful in the treatment of PD. We herein disclose the structure, potential ligand-protein binding interactions, and pharmacological profiling of potent and highly selective kinase inhibitors based on a triazolopyridazine chemical scaffold. (C) 2014 Elsevier Ltd. All rights reserved.
Structure-Activity relationships of replacements for the triazolopyridazine of Anti-Cryptosporidium lead SLU-2633
作者:Edmund Oboh、José E. Teixeira、Tanner J. Schubert、Adriana S. Maribona、Brylon N. Denman、Radhika Patel、Christopher D. Huston、Marvin J. Meyers
DOI:10.1016/j.bmc.2023.117295
日期:2023.5
competitive binding assay. While most other heterocycles were significantly less potent than the lead, some analogs such as azabenzothiazole 31b, have promising potency in the low micromolar range, similar to the drug nitazoxanide, and represent potential new leads for optimization. Overall, this work highlights the important role of the terminal heterocyclic head group and represents a significant extension