Synthesis of novel halo and tosyloxy nortropane derivatives as efficient precursors for the one-step synthesis of the dopamine transporter PET ligand [<sup>18</sup>F]FECNT
作者:J. Pijarowska-Kruszyna、A. W. Jaron、A. Kachniarz、K. Kasprzak、A. Kowalska、B. Malkowski、S. Demphel、F. Dollé、R. Mikolajczak
DOI:10.1002/jlcr.3181
日期:2014.3
nortropane derivative 2β-carbomethoxy-3β-(4-chlorophenyl)-8-(2-fluoroethyl)-nortropane (FECNT) is a dopamine transporter (DAT) ligand. Currently, it is considered as reference for positron emission tomography imaging. Herein, the synthesis of novel precursors (N-tosyloxy-, chloro-, and bromo- analogues) for one-step radiosynthesis of [(18)F]FECNT is reported. Using the N-mesyloxy- precursor in a one-step
氟18 标记的nortropane 衍生物2β-carbomethoxy-3β-(4-chlorophenyl)-8-(2-fluoroethyl)-nortropane (FECNT) 是一种多巴胺转运蛋白(DAT) 配体。目前,它被认为是正电子发射断层扫描成像的参考。在此,报道了用于 [(18)F]FECNT 一步放射合成的新型前体(N-甲苯磺酰氧基-、氯-和溴-类似物)的合成。在一步放射合成中使用 N-甲磺酰氧基前体,获得了粗 [(18)F]FECNT,放射性标记率为 45±10%,证实了这种方法在设计新型标记前体方面的实际效率.