Solid‐Phase Synthesis of<i>N</i>‐Aryl‐<i>N</i>′‐Carboalkoxy Guanidines by the Mitsunobu Reaction of Fmoc‐Guanidines
作者:Dale E. Robinson、Punit P. Seth、Elizabeth A. Jefferson
DOI:10.1081/scc-200026206
日期:2004.1
Abstract A new method for the solid‐phase synthesis of N‐aryl‐N′‐carboalkoxy guanidines is described. Aromatic amines were reacted with Fmoc‐isothiocyanate to provide Fmoc‐thioureas, which were coupled with Rink amide resin to provide the corresponding resin‐bound Fmoc‐guanidines. Subsequent Mitsunobu alkylation with a variety of alcohols delivered N‐aryl‐N′ carboalkoxy guanidines in good to high purity
摘要 描述了一种固相合成 N-芳基-N'-碳烷氧基胍的新方法。芳香胺与 Fmoc-异硫氰酸酯反应得到 Fmoc-硫脲,然后与 Rink 酰胺树脂偶联得到相应的树脂结合的 Fmoc-胍。随后用各种醇进行的 Mitsunobu 烷基化在树脂裂解后提供了良好至高纯度的 N-芳基-N' 碳烷氧基胍。