Concise, gram-scale synthesis of furo[2,3-b]pyridines with functional handles for chemoselective cross-coupling
作者:Sean N. O'Byrne、Benjamin J. Eduful、Timothy M. Willson、David H. Drewry
DOI:10.1016/j.tetlet.2020.152353
日期:2020.9
A concise 4-step synthesis of furo[2,3-b]pyridines, with handles in the 3- and 5-positions for palladium mediated cross-coupling reactions, is described. The synthetic route has been optimized, with only one step requiring purification by column chromatography. The route is amenable to scale-up, and was successfully executed on a multi-gram scale. Furopyridines are of growing interest in medicinal
描述了呋喃并[2,3- b ]吡啶的简明四步合成,在 3 位和 5 位上有用于钯介导的交叉偶联反应的手柄。合成路线经过优化,仅一步需要柱层析纯化。该路线适合按比例放大,并已在数克规模上成功实施。呋喃并吡啶在药物化学中越来越受到关注,这种途径应该能够轻松获得构效关系 (SAR) 研究的核心。
Orally Bioavailable Enzymatic Inhibitor of CD38, <b>MK-0159</b>, Protects against Ischemia/Reperfusion Injury in the Murine Heart
major nicotinamide adenine dinucleotide (NAD+)- and nicotinamide adenine dinucleotide phosphate (NADP+)-consuming enzymes in mammals. NAD+, NADP+, and their reduced counterparts are essential coenzymes for numerous enzymatic reactions, including the maintenance of cellular and mitochondrial redox balance. CD38 expression is upregulated in age-associated inflammation as well as numerous metabolic diseases