作者:Shawn C. Burdette、Christopher J. Frederickson、Weiming Bu、Stephen J. Lippard
DOI:10.1021/ja0287377
日期:2003.2.19
2-pyridylmethyl)aminomethyl)-N-methylaniline]-6-hydroxy-3-xanthanone) is prepared via a convergent synthetic strategy developed from previous studies with these compounds. ZP4, like its predecessors, has excitation and emission wavelengths in the visible range ( approximately 500 nm), a dissociation constant (K(d)) for Zn(2+) of less than 1 nM and a high quantum yields (Phi = approximately 0.4), making
已合成并表征了 Zinpyr 家族 ZP4 中 Zn(2+) 的第二代荧光传感器。ZP4 (Zinpyr-4, 9-(o-carboxyphenyl)-2-chloro-5-[2-(bis(2-pyridylmethyl)aminomethyl)-N-methylaniline]-6-hydroxy-3-xanthanone)从先前对这些化合物的研究开发的收敛合成策略。ZP4 与其前身一样,在可见光范围内(大约 500 nm)具有激发和发射波长,Zn(2+) 的解离常数 (K(d)) 小于 1 nM 和高量子产率(Phi = 大约0.4),使其非常适合生物应用。在模拟生理条件下观察到 5 倍荧光增强,对应于 Zn(2+) 阳离子与传感器的结合,从而抑制光致电子转移 (PET) 淬火通路。