Broad Scope and High‐Yield Access to Unsymmetrical Acyclic [
<sup>11</sup>
C]Ureas for Biomedical Imaging from [
<sup>11</sup>
C]Carbonyl Difluoride
作者:Jimmy E. Jakobsson、Sanjay Telu、Shuiyu Lu、Susovan Jana、Victor W. Pike
DOI:10.1002/chem.202100690
日期:2021.7.16
needed for labelling acyclic ureas with carbon-11 (t1/2=20.4 min) as potential radiotracers for biomedical imaging with positronemissiontomography (PET). Herein, we describe the rapid and high-yield syntheses of unsymmetrical acyclic [11C]ureas under mild conditions (room temperature and within 7 min) using no-carrier-added [11C]carbonyl difluoride with aliphatic and aryl amines. This methodology is compatible