作者:Saskia Louwrier、Antonin Tuynman、Henk Hiemstra
DOI:10.1016/0040-4020(95)01086-6
日期:1996.2
The syntheses of three bicyclic guanidines as model compounds for the guanidine alkaloid ptilomycalin A are described. The guanidines are prepared from pyrrolidin-2-one via an N-acyliminium ion coupling reaction with silyl enol ethers and a direct guanylation with bis-Boc-thiourea and HgCl2 as the key steps.
描述了三个双环胍的合成,作为胍生物碱多菌灵A的模型化合物。通过与甲硅烷基烯醇醚的N-酰基亚胺离子偶联反应,并以双-Boc-硫脲和HgCl 2作为关键步骤,直接由胍基吡咯烷-2-酮制备胍。