作者:Somenath Chowdhury、Gabriele Schatte、Heinz-Bernhard Kraatz
DOI:10.1039/b401039f
日期:——
Redox active cyclopeptides Fc[CSA]2
(5), Fc[GlyâCSA]2
(6), Fc[AlaâCSA]2
(7), Fc[ValâCSA]2
(8) and Fc[LeuâCSA]2
(9)
(CSA = cysteamine) which are formed by the reaction of ferrocenedicarboxylic acid with peptide cystamines at high dilutions. These systems exhibit H-bonding involving the amide NH in solution as shown by their temperature dependent NMR spectra. With the exception of 5, the ferrocene macrocycles display intramolecular Nâ¯O cross-ring H-bonding in the solid state involving the amino acids proximal to the ferrocene.
氧化还原活性环肽 Fc[CSA]2 (5)、Fc[GlyâCSA]2 (6)、Fc[AlaâCSA]2 (7)、Fc[ValâCSA]2 (8) 和 Fc[LeuâCSA]2 (9)(CSA = 半胱胺)是二茂铁二羧酸与肽胱胺在高稀释度下反应生成的。这些体系在溶液中表现出涉及酰胺 NH 的 H 键,这一点可以从它们与温度相关的 NMR 光谱中看出。除 5 外,二茂铁大环在固态下显示出分子内 Nâ¯O 跨环 H 键,涉及二茂铁附近的氨基酸。