Synthesis of Conformationally Constrained <i>C</i>-Glycosyl α- and β-Amino Acids and Sugar−Carbamino Sugar Hybrids via Diels−Alder Reaction
作者:K. Jayakanthan、Yashwant D. Vankar
DOI:10.1021/ol052190u
日期:2005.11.1
[structure: see text] Sugar-derived dienes undergo Diels-Alder reactions with methyl alpha-nitro acrylate and ethyl beta-nitro acrylate to form the corresponding cycloadducts which have been converted into conformationally constrained C-glycosyl alpha- and beta-amino acids. Further, these beta-amino acids are converted into sugar-carbamino sugar hybrid molecules.
[结构:见正文]糖衍生的二烯与α-硝基丙烯酸甲酯和β-硝基丙烯酸乙酯进行Diels-Alder反应,形成相应的环加合物,该环加合物已转化为构象受限的C-糖基α-和β-氨基酸。此外,这些β-氨基酸被转化成糖-氨基脲糖杂合分子。