探索非洲锥虫缩氨基硫脲的结构-活性关系:布氏锥虫布氏,一系列的35缩氨基硫脲(1 - 35)已被合成和表征可以通过1 H NMR,13 C NMR,和FT-IR光谱。使用“ Lilit alamar blue”方法测试所有化合物的杀锥虫活性。考虑到它们的结构,比较了硫半脲的锥虫杀菌能力。该研究结果表明,使用苯乙酮缩氨基硫脲进行(1)作为基本模型,表明:(a)中的亲脂性的取代基的存在对在苯环上的位置,(b)苯环的取代和(c)硫代酰胺官能团的氢被苯基取代,强烈影响锥虫活性。对基本结构(1)的各种修饰允许合成1-(4-氯苯基)亚乙基-4-苯基-硫代氨基脲(34)。该化合物具有3.97μM的锥虫杀灭活性,是该系列中最活跃的。
A highly sensitive fluorescent chemosensor for simultaneous determination of Ag(I), Hg(II), and Cu(II) ions: Design, synthesis, characterization and application
作者:Nguyen Khoa Hien、Nguyen Chi Bao、Nguyen Thi Ai Nhung、Nguyen Tien Trung、Pham Cam Nam、Tran Duong、Jong Seung Kim、Duong Tuan Quang
DOI:10.1016/j.dyepig.2015.01.014
日期:2015.5
simultaneous quantification of silver, copper, and mercury ions in aqueous solution at the ppb level. The stable geometric structures of the complexesbetween DA and Ag+, Hg2+, Cu2+ with stoichiometry of 1:1, 2:1, and 2:1, have been found and investigated for electronic properties and fluorescence quenching phenomena by using Atoms in Molecules (AIM) and Natural Bond Orbitals (NBO) analyses.