Masahiro Ikejiri, Aki Yoshimizu, Fumika Shiota, Ai Nagayama, Aki Fujisaka, Yuichi Kuboki, Kazuyuki Miyashita
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引用次数: 0
摘要
我们开发了一系列绿色荧光蛋白发色团的 2-单芳基-5-二亚甲基类似物,以研究它们的粘度诱导发射(VIE)特性。这些类似物是通过亚胺酸甲酯和 N-(二芳基亚甲基)甘氨酸缩合合成的。在这些类似物中,N-甲基吡咯-2-基取代的类似物 1h 在甘油三酯和脂质双分子层中具有最显著的 VIE 特性,这可能是由于吡咯环具有高π电子富集特性。咪唑啉酮类似物中的吡咯取代基有望成为引入 VIE 行为的常见模板。
Viscosity-Induced Emission of 5-(Diarylmethylene)imidazolone with Extended Conjugation via Attachment of N-Methylpyrrole at the 2-Position
We have developed a series of 2-monoaryl-5-diarylmethylene analogs of the green fluorescent protein chromophore to study their viscosity-induced emission (VIE) properties. The analogs were synthesized by a condensation with methyl imidate and N-(diarylmethylene)glycinate. Among the analogs, the N-methylpyrrol-2-yl-substituted analog 1h induced the most remarkable VIE behavior in triglyceride and lipid bilayers probably due to the high π-electron-rich property of the pyrrole ring. The pyrrole substituent in imidazolone analogs can be expected to become a common template for introducing VIE behavior.
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