Synthesis and photophysical properties of new fluorinated benzo[c]xanthene dyes as intracellular pH indicators
作者:Jixiang Liu、Zhenjun Diwu、Wai-Yee Leung
DOI:10.1016/s0960-894x(01)00595-9
日期:2001.11
Two new fluorinated benzo[c]xanthene dyes were synthesized by reaction of fluorinated 1,6-dihydroxynaphthalenes with 2,4- (and 2,5)-dicarboxy-3'-dimethylamino-2'-hydroxybenzophenone. The two critical fluorinated 1,6-dihydroxynaphthalene intermediates were prepared via a regioselective route. The fluorinated benzo[c]xanthene dyes exhibit desired lower pK(a) values (6.4 and 7.2, respectively) than their
通过氟化的1,6-二羟基萘与2,4-(和2,5)-二羧基-3'-二甲基氨基-2'-羟基二苯甲酮的反应合成了两种新型的氟化苯并[c]]吨染料。通过区域选择性途径制备了两种关键的氟化1,6-二羟基萘中间体。氟化苯并[c]]吨染料显示出比其母体化合物(pK(a)= 7.5)更低的pK(a)值(分别为6.4和7.2),而pH依赖性的双发射特性得到了很好的保留。它们的细胞可渗透酯已经制备用于细胞内应用。