Synthesis of 8-Methoxypenciclovir and 8-Methoxyganciclovir through Methyl Triflate, a New Potential Approach to Label Penciclovir and Ganciclovir with Carbon-11
作者:Qi-Huang Zheng、Ji-Quan Wang、Xiangshu Fei、Gary D. Hutchins
DOI:10.1055/s-2003-42454
日期:——
In an effort to make HSV-tk gene reporter probes 8-FPCV and 8-FGCV labeled with fluorine-18, via the nucleophilic substitution reaction of PCV and GCV quaternized methylamine salt precursors with KF/Kryptofix 2.2.2, a new and unusual reaction through methyl triflate was discovered. Subsequently, new compounds 8-MeOPCV and 8-MeOGCV were synthesized from PCV and GCV in six steps with 12% and 20% overall chemical yield, respectively, and a novel potential approach to label PCV and GCV with carbon-11 has been proposed.
为了通过 PCV 和 GCV 季胺化甲胺盐前体与 KF/Kryptofix 2.2.2 的亲核取代反应制备标记有氟-18 的 HSV-tk 基因报告探针 8-FPCV 和 8-FGCV,研究人员发现了一种通过三late 甲酯进行的新的不寻常反应。随后,研究人员通过六个步骤从 PCV 和 GCV 合成了新化合物 8-MeOPCV 和 8-MeOGCV,总化学收率分别为 12% 和 20%,并提出了用碳-11 标记 PCV 和 GCV 的新方法。