作者:Thorsten Bach、Birgit Prüger
DOI:10.1055/s-2007-965945
日期:2007.4
The two model chromophores 2 and 3 for the core 1 of the gold fluorescent protein (GdFP) were synthesized from commercially available 2-methyl-3-nitroaniline (4) in six synthetic steps and overall yields of 13% and 8%, respectively. The key step of the sequence is the chemoselective, reductive introduction of the amino group after assembly of the Z-configured 5-(indol-3-ylmethylene)imidazolin-4-one skeleton of the chromophore. Compound (Z)-2 was shown to undergo a light-initiated E/Z-isomerization, which allows access also to its E-isomer.
金色荧光蛋白(GdFP)的核心1的两种模型色团2和3,分别通过商业可得的2-甲基-3-硝基苯胺(4)经过六步合成得到,总产率分别为13%和8%。合成序列的关键步骤是在组装了Z型构型的5-(吲哚-3-亚甲基)咪唑啉-4-酮色团骨架后,进行化学选择性的还原氨基引入。化合物(Z)-2被证明可进行光引发的E/Z异构化,从而也能获得其E型异构体。