158875-31-1Relevant academic research and scientific papers
Synthesis and Biological Evaluation of an Indazole-Based Selective Protein Arginine Deiminase 4 (PAD4) Inhibitor
Tjin, Caroline Chandra,Wissner, Rebecca F.,Jamali, Haya,Schepartz, Alanna,Ellman, Jonathan A.
supporting information, p. 1013 - 1018 (2018/10/02)
Protein arginine deiminase 4 (PAD4) is a calcium-dependent enzyme that catalyzes the conversion of arginine to citrulline within target proteins. Dysregulation of PAD4 has been implicated in a number of human diseases, including rheumatoid arthritis and other inflammatory diseases as well as cancer. In this study, we report on the design, synthesis, and evaluation of a new class of haloacetamidine-based compounds as potential PAD4 inhibitors. Specifically, we describe the identification of 4,5,6-trichloroindazole 24 as a highly potent PAD4 inhibitor that displays >10-fold selectivity for PAD4 over PAD3 and >50-fold over PAD1 and PAD2. The efficacy of this compound in cells was determined by measuring the inhibition of PAD4-mediated H4 citrullination in HL-60 granulocytes.
Synthesis of a New Generation Reverse Transcriptase Inhibitor via the BCl3/GaCl3-induced Condensation of Anilines with Nitriles (Sugasawa Reaction)
Houpis, Ioannis N.,Molina, Audrey,Douglas, Alan W.,Xavier, Lyndon,Lynch, Joseph,et al.
, p. 6811 - 6814 (2007/10/02)
The synthesis of 1 was achieved in high overall yield through a mechanism-based improvement of the preparation of o-acyl anilines.
In situ NMR spectroscopic studies of aniline ortho acylation ("sugasawa reaction"): The nature of reaction intermediates and Lewis acid influence on yield
Douglas,Abramson,Houpis,Karady,Molina,Xavier,Yasuda
, p. 6807 - 6810 (2007/10/02)
Ortho acylation of anilines by nitriles in the presence of BCl3 and a second Lewis acid appear to proceed through an intermediate "supercomplex" including all four components. Yield improvements were obtained based on recognition that chloride affinity of the second Lewis acid governs supercomplex formation. Aniline protonation was found to be the cause of incomplete reaction.
