2-Amino-3-substituted-6-[(<i>E</i>)-1-phenyl-2-(<i>N</i>-methylcarbamoyl)vinyl]imidazo[1,2-<i>a</i>]pyridines as a Novel Class of Inhibitors of Human Rhinovirus: Stereospecific Synthesis and Antiviral Activity
作者:Chafiq Hamdouchi、Jesús de Blas、Mirian del Prado、Joseph Gruber、Beverly A. Heinz、Lori Vance
DOI:10.1021/jm9810405
日期:1999.1.1
plaque reduction assay and in a cytopathic effect assay. Compounds 1b-d,h exhibited a strong antirhinovirus activity, and no apparent cellular toxicity was visible. The substitution at the 3-position was required for activity. Surprisingly the isopropylsulfonyl in this family of compounds did not enhance the activity as in the case of benzimidazoles. Instead, compound 1i was 4 times less active than its
与结构相关的一系列2-氨基-3-取代-6-[((E)-1-苯基-2-(N-甲基氨基甲酰基)乙烯基] + ++咪唑基偶氮[1,2-a]吡啶1a-i设计并制备了Enviroxime及其类似物苯并咪唑的抗鼻炎病毒药物。这类化合物中的咪唑环是从甲苯磺酰化后的氨基吡啶开始,然后用适当的乙酰胺进行处理而构建的。合成过程中的关键步骤包括开发和使用新的Horner-Emmons试剂直接掺入甲基乙烯基羧酰胺。该反应在底物5a-f中是立体特异性的,仅导致所需的E-异构体,并且避免在抗病毒活性评估之前避免使用反相制备型HPLC分离两种可能的异构体。异丙基磺酰基,在新系列的咪唑并[1,2-a]吡啶中,通过卤素-金属交换并随后用异丙基异丙基硫代磺酸磺酸盐进行处理,引入了在活性方面被称为苯并咪唑SAR 1-位最佳取代基的化合物。在菌斑减少测定和细胞病变效应测定中评价化合物1a-i。化合物1b-d,h表现出很强的抗鼻病