以PEG-400为固-液相转移催化剂,在超声辐照下以良好收率合成了一系列含取代嘧啶环的N-(5-aryl-2-furoyl)硫脲衍生物。所有新合成的化合物的结构均通过 IR、1 H NMR 和元素分析进行了阐明和确认。与传统的加热方法相比,我们的方法具有反应时间更短,反应产率更高的优点。初步生物学试验表明,部分目标化合物对单子叶植物和双子叶植物的根、茎有较好的抑制活性。
A series of polysubstituted and fused heterocycle derivatives of acylthiourea was prepared and the biological activity against influenza virus was evaluated. Of the analogues that demonstrated IC(50)s < 0.1 mu M, acylthiourea derivatives 16 and 50 were further investigated as candidates with the most potential for future development. The SAR of these compounds are discussed and they represent a novel class of highly potent and selective inhibitors of influenza virus. (c) 2005 Published by Elsevier Ltd.