Simple synthesis of carbon-11 labeled styryl dyes as new potential PET RNA-specific, living cell imaging probes
作者:Min Wang、Mingzhang Gao、Kathy D. Miller、George W. Sledge、Gary D. Hutchins、Qi-Huang Zheng
DOI:10.1016/j.ejmech.2008.02.033
日期:2009.5
probes for biomedical imaging technique positron emission tomography (PET) imaging of RNA in living cells. Precursors (E)-2-(2-(1-(triisopropylsilyl)-1H-indol-3-yl)vinyl)quinoline (2), (E)-2-(2,4,6-trimethoxystyryl)quinoline (3) and (E)-4-(2-(6-methoxyquinolin-2-yl)vinyl)-N,N-diemthylaniline (4), and standards styryl dyes E36 (6), E144 (7) and F22 (9) were synthesized in multiple steps with moderate
已经开发出一种新型的苯乙烯基染料作为RNA特异性活细胞成像探针,用于荧光显微镜技术来研究核的结构和功能。这项研究旨在开发碳11标记的苯乙烯基染料,作为生物医学成像技术正电子发射断层扫描(PET)成像活细胞中RNA的新探针。前体(E)-2-(2-(1-(1-(三异丙基甲硅烷基)-1 H-吲哚-3-基)乙烯基)喹啉(2),(E)-2-(2,4,6-三甲氧基苯乙烯基)喹啉(3)和(E)-4-(2-(6-甲氧基喹啉-2-基)乙烯基)-N,N-二甲基苯胺(4)和标准苯乙烯基染料E36(6),E144(7)和F22(9)分多个步骤合成,化学产率中等至较高。前体2用[ 11 C] CH 3 OTf标记,通过在THF中添加(n- Bu)4 NF进行快速脱保护反应后,捕集在阳离子交换CM Sep-Pak柱上,并通过固相萃取( SPE)纯化,以40–50%的放射化学收率提供目标示踪剂[ 11 C] E36([