SUBSTITUTED 6-AMINO-NICOTINAMIDES AS KCNQ2/3 MODULATORS
申请人:Kühnert Sven
公开号:US20120101079A1
公开(公告)日:2012-04-26
Substituted 6-amino-nicotinamides, pharmaceutical compositions containing these compounds and also use of these compounds in the treatment and/or prophylaxis of pain and further diseases and/or disorders.
intermediacy of an Ir-boryl complex where the substrate C–Hactivation is the turnover determining step, intriguingly without any appreciable primary KIE. The method displays a broad range of substrate scope and functional group tolerance. Numerous late-stage borylation of various important molecules and drugs were achieved using this developed strategy. The borylated compounds were further converted into
一种 Ir 催化的芳烃(例如 2-苯氧基吡啶、2-苯胺基吡啶、苄胺、苄基哌嗪、苄基吗啉、苄基吡咯烷、苄基哌啶、苄基氮杂环己烷、α-氨基酸衍生物、氨基苯基乙烷衍生物和其他重要支架)的无配体邻位硼化的有效方法) 并开发了药物。正如通过使用动力学同位素研究和 DFT 计算进行的详细机理研究所揭示的那样,该反应通过一个有趣的机理途径进行。发现催化循环涉及 Ir-硼基络合物的中间体,其中底物 C-H 活化是转换决定步骤,有趣的是没有任何明显的初级 KIE。该方法显示了广泛的底物范围和官能团耐受性。使用这种开发的策略实现了各种重要分子和药物的许多后期硼化。硼化化合物进一步转化为更有价值的官能团。此外,利用单硼化化合物的 B-N 分子内相互作用的优势,开发了一种操作简单的方法,用于选择性二硼化 2-苯氧基吡啶和许多官能化芳烃。此外,还展示了从硼化产物中去除吡啶基导向基团以实现邻硼化苯酚以及用于制备 1,2-二硼化苯的
Palladium-catalyzed oxidative alkynylation of arene C–H bond using the chelation-assisted strategy
作者:Seok Hwan Kim、Sae Hume Park、Sukbok Chang
DOI:10.1016/j.tet.2012.04.003
日期:2012.7
Palladium-catalyzed alkynylation of arene C–Hbonds with (triisopropylsilyl)acetylene was developed for the first time under oxidative conditions in the present study. Among various type of directing groups examined, the N-phenyl-2-aminopyridine skeleton was shown to be most effective and selective for the Pd-catalyzed direct alkynylationreaction, and the desired alkynylated products were obtained
Substituted 6-amino-nicotinamides as KCNQ2/3 modulators
申请人:GRUNENTHAL GMBH
公开号:US20140213569A1
公开(公告)日:2014-07-31
Substituted 6-amino-nicotinamides, pharmaceutical compositions containing these compounds and also use of these compounds in the treatment and/or prophylaxis of pain and further diseases and/or disorders.
Application of indole-based monophosphine in ppm level Pd-catalyzed C–N bond formation
作者:Cheuk Long Li、Man Ho Tse、Pui Ying Choy、Fuk Yee Kwong
DOI:10.1016/j.jorganchem.2024.123124
日期:2024.5
methoxy groups has been designed for Pd-catalyzed Buchwald-Hartwigamination. It is worth noting that this new catalyst system was found to be highly effective in facilitating the cross-coupling reaction even at parts per million levels of palladium catalyst. A wide range of arylchlorides as well as amine nucleophiles were successfully employed for the aromatic C–N bond-forming reaction. Remarkably