Glycosylation of ‘basic’ alcohols: methyl 6-(hydroxymethyl)picolinate as a case study
作者:Shuai Wang、Dominique Lafont、Jani Rahkila、Benjamin Picod、Reko Leino、Sébastien Vidal
DOI:10.1016/j.carres.2013.02.009
日期:2013.5
Glycosylation is promoted by acid promoters rendering the reactions with basic acceptors challenging. This report presents an in depth study involving methyl 6-(hydroxymethyl)picolinate as the model acceptor and 22 glycosyl donors to afford the desired glycosides in good yields ranging from 46% to 85%. Several parameters were evaluated, including the protecting groups of the glycosyl donor, the leaving
酸促进剂可促进糖基化,从而使与碱性受体的反应具有挑战性。该报告提出了一项深入研究,涉及6-(羟甲基)吡啶甲酸甲酯作为模型受体和22个糖基供体,以46%至85%的高收率提供所需的糖苷。评价了几个参数,包括糖基供体的保护基,异头中心的离去基团和启动子。与基于吡啶的受体(46%)相比,提供高产率的糖苷(79%)的基于苯的受体对吡啶环的影响是明显的。本工作提供了对含吡啶的糖苷的一般和可靠的途径。