A common strategy towards the synthesis of 1,4-dideoxy-1,4-imino-l-xylitol, deacetyl (+)-anisomycin and amino-substituted piperidine iminosugars
作者:Vimal Kant Harit、Namakkal G. Ramesh
DOI:10.1016/j.carres.2020.107988
日期:2020.6
(+)-anisomycin was a consequence of thermodynamically driven concomitant intramolecular nucleophilic addition reaction of the amino group to the resultant aldehyde obtained by oxidative cleavage of the amino-vicinal diol. Alternatively, double nucleophilic substitution on an amino-diol, after mesylation, with various amines delivered amino-substituted piperidine iminosugars in good yields.
合成三种具有潜在生物学和医学意义的分子的策略是合成三种不同的靶分子,即1,4-二甲氧基-1,4-亚氨基-1-木糖醇,脱乙酰基(+)-茴香霉素和氨基取代的哌啶亚氨基糖。报道了衍生自三-O-苄基-d-葡糖醛的普通氨基-邻位二醇中间体。1,4-二脱氧-1,4-亚氨基-1-木糖醇和(+)-茴香霉素中存在的关键吡咯烷环的构建是热力学驱动的氨基与分子内亲核分子加成反应的结果,该反应是通过氨基-邻位二醇的氧化裂解。备选地,在甲磺酰化之后,用各种胺在氨基二醇上进行双亲核取代以良好的产率递送了氨基取代的哌啶亚氨基糖。