Preparation of Pseudo-Peptide Building Blocks with retro-Thioamide Bond Mediated via Thiocarbamoyl Meldrum's Acid
作者:Karolina Janikowska、Sławomir Makowiec、Janusz Rachoń
DOI:10.1002/hlca.201100347
日期:2012.3
containing a thiomalonamide moiety was developed. Isothiocyanate derivatives of amino acids react smoothly with 2,2‐dimethyl‐1,3‐dioxane‐4,6‐dione (Meldrum's acid) to yield new thiocarbamoyl derivatives of Meldrum's acids. Thermal decomposition of these new derivatives leads to thiocarbamoyl ketenes, which acylate amino acid esters to give pseudo‐tripeptides.
开发了一种简单高效的含有硫代丙二酰胺部分的假三肽合成方法。氨基酸的异硫氰酸酯衍生物与2,2-二甲基-1,3-二恶烷-4,6-二酮(反应顺利梅尔德伦的酸),得到的新的硫代氨基甲酰基衍生物梅尔德伦的酸。这些新衍生物的热分解产生了硫代氨基甲酰基烯酮,后者使氨基酸酯酰化得到假三肽。