Preparation of enantiomerically pure 2-(1′-aminomethyl)furan derivatives and synthesis of an unnatural polyhydroxylated piperidine
作者:Xin Cong、Ke-Gang Liu、Qing-Jiang Liao、Zhu-Jun Yao
DOI:10.1016/j.tetlet.2005.09.189
日期:2005.12
Zinc-mediated propargylation of α-acylaminoaldehydes, and subsequent oxidative isomerization followed by Ag(I)-catalyzed cycloisomerization conveniently provides a new enantioselective route to the corresponding 2-aminoalkylfurans. One of these furans was successfully converted into an unnatural polyhydroxylated piperidine that efficiently incorporated structural features of the starting material.
锌介导的α-酰基氨基醛的炔丙基化,以及随后的氧化异构化以及随后的Ag(I)催化的环异构化,为相应的2-氨基烷基呋喃提供了一条新的对映选择性途径。这些呋喃中的一种成功地转化为有效结合起始材料结构特征的非天然多羟基哌啶。这代表了具有不同取代的生物学上有趣的多羟基哌啶的新入口。