Evaluation of New Dihydrophthalazine-Appended 2,4-Diaminopyrimidines against Bacillus anthracis: Improved Syntheses Using a New Pincer Complex
作者:Nagendra Muddala、Baskar Nammalwar、Subhashini Selvaraju、Christina Bourne、Mary Henry、Richard Bunce、K. Berlin、Esther Barrow、William Barrow
DOI:10.3390/molecules20047222
日期:——
utilizing a new pincer catalyst, dichlorobis[1-(dicyclohexylphosphanyl)-piperidine]palladium(II), allows the final Heck coupling to be performed at 90 °C using triethylamine as the base. These milder conditions have been used to achieve improved yields for new and previously reported substrates with functional groups that degrade or react at the normal 140 °C reaction temperature. An analytical protocol for
据报道,有十种新的二氢邻苯二甲酰胺附加的2,4-二氨基嘧啶类化合物作为炭疽芽孢杆菌的潜在药物的合成和评估。利用新型钳形催化剂二氯双[1-(二环己基膦酰基)-哌啶]钯(II)的合成方法改进后,最终的Heck偶联反应可在90°C下以三乙胺为基础进行。这些较温和的条件已用于提高新的和先前报道的带有官能团的底物的产率,这些底物在正常的140°C反应温度下会降解或反应。还公开了用于分离两种最具活性的化合物的S和R对映异构体的分析方案。最后,给出了铅化合物最具活性的对映异构体(S)-RAB1的X射线结构。