作者:Graham M. Kyne、Mark E. Light、Mike B. Hursthouse、Javier de Mendoza、Jeremy D. Kilburn
DOI:10.1039/b102298a
日期:——
A series of acyclic thiourea derivatives, designed to create a cleft with four hydrogen bond donors suitable for carboxylate recognition, have been prepared, and their ability to bind to N-protected amino acid carboxylate salts has been investigated. The crystal structure of one of the thioureas has been determined showing that it forms a hydrogen bonded centrosymmetric dimer in the solid-state, in a conformation appropriate for the desired binding of carboxylates. The thioureas show good discrimination between different amino acids and those thioureas incorporating chiral moieties show moderate enantioselectivity for a range of amino acid derivatives.
一系列非环状硫脲衍生物已被制备,其设计旨在形成一个含有四个氢键供体的裂隙,适合羧酸盐的识别,并研究了它们与N-保护氨基酸羧酸盐水合物的结合能力。其中一个硫脲的晶体结构已被确定,显示其在固态下形成一个通过氢键连接的中心对称二聚体,其构象适合所需的羧酸盐结合。这些硫脲对不同氨基酸表现出良好的区分性,而那些含有手性部分的硫脲对一系列氨基酸衍生物显示出适度的对映选择性。