Simplified synthesis of 1,1′[14C]-methylene-di(2-naphthol). A radiochemical and kinetic approach
作者:Giancarlo Angelini、Ornella Ursini、Patrizia Minetti、Diana Celona、Francesco De Angelis
DOI:10.1002/jlcr.838
日期:2004.8
The synthesis of the 1,1′[14C]-methylene-di-(2-naphthol) 2, as the radiolabeled probe of a possible interaction between the β-amyloid fibrils and the di-naphthol mojety in the Alzheimer's disease, is reported. Very simple radiochemical procedure, starting from [14C]paraformaldehyde, produced 8.66 MBq of compound 2 at the specific radioactivity of 1.22 TBq/mol. A mechanistic and kinetic approach allowed the comprehension of the right experimental conditions. The stability of compound 2 in acetonitrile solution was investigated, denoting a significative decomposition process through the transient formation of the 1,2-naphthyne intermediate. Copyright © 2004 John Wiley & Sons, Ltd.
报告了 1,1′[14C]-亚甲基-二(2-萘酚)2 的合成,它是阿尔茨海默氏症中 β 淀粉样蛋白纤维和二萘酚莫杰之间可能相互作用的放射性标记探针。以[14C]多聚甲醛为起点,通过非常简单的放射化学过程,产生了 8.66 MBq 的化合物 2,比放射性为 1.22 TBq/mol。通过机理和动力学方法,我们找到了合适的实验条件。对化合物 2 在乙腈溶液中的稳定性进行了研究,结果表明,通过 1,2-萘中间体的瞬时形成,化合物 2 发生了显著的分解过程。Copyright © 2004 John Wiley & Sons, Ltd. All Rights Reserved.