Tetraethylene glycol promoted two-step, one-pot rapid synthesis of indole-3-[1-11C]acetic acid
作者:Sojeong Lee、David L. Alexoff、Colleen Shea、Dohyun Kim、Michael Schueller、Joanna S. Fowler、Wenchao Qu
DOI:10.1016/j.tetlet.2014.12.014
日期:2015.1
An operationally friendly, two-step, one-pot process has been developed for the rapid synthesis of carbon-11 labeled indole-3-acetic acid ([C-11]IAA or [C-11]auxin). By replacing an aprotic polar solvent with tetraethylene glycol, nucleophilic [C-11]cyanation and alkaline hydrolysis reactions were performed consecutively in a single pot without a time-consuming intermediate purification step. The entire production time for this updated procedure is 55 mm, which dramatically simplifies the entire synthesis and reduces the starting radioactivity required for a whole plant imaging study. (C) 2014 Elsevier Ltd. All rights reserved.