Emissive and Cell-Permeable 3-Pyridyl- and 3-Pyrazolyl-4-azaxanthone Lanthanide Complexes and Their Behaviour<i>in cellulo</i>
作者:Craigâ
P. Montgomery、Elizabethâ
J. New、Larsâ
O. Palsson、David Parker、Andreiâ
S. Batsanov、Laurent Lamarque
DOI:10.1002/hlca.200900122
日期:2009.11
seven emissive europium(III) and terbium(III) complexes was prepared, incorporating a 3‐pyridyl‐4‐azaxanthone or 3‐pyrazolyl‐4‐azaxanthone sensitising moiety within a polydentate macrocyclic ligand. High overall emission quantum yields in aqueous media are attenuated in the presence of protein or certain oxy anions due to displacement of the N,N′‐chelated sensitiser. Nevertheless, these complexes are
制备了一系列七个发射性euro(III)和b(III)配合物,在多齿大环配体中结合了3-吡啶基-4-氮杂蒽酮或3-吡唑基-4-氮杂蒽酮敏化部分。由于N,N'螯合的敏化剂的置换,在蛋白质或某些氧阴离子存在下,水性介质中较高的总发射量子产率会降低。然而,这些复合物被带入细胞并倾向于在线粒体的最初几个小时内定位,然后被运至内体区室。在存在竞争性抑制剂或定义明确的摄取途径的启动子的情况下,细胞摄取研究揭示了涉及巨胞饮作用的常见摄取机制。