基于绕丹宁的发色团：快速获得有能力的光开关及其在光诱导细胞凋亡中的应用,Journal of the American Chemical Society

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基于绕丹宁的发色团：快速获得有能力的光开关及其在光诱导细胞凋亡中的应用
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2024-01-11 , DOI: 10.1021/jacs.3c07710
Laura Köttner ₁ , Friederike Wolff ₂ , Peter Mayer ₃ , Esther Zanin ₂ , Henry Dube ₁

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分子光电开关在所有化学相关的研究领域中都非常受欢迎。它们使用易于应用、无浪费的刺激，对纳米级的几何和电子变化提供有效的外部控制。然而，通常无法简单有效地获得此类分子工具，并且需要精心设计的合成和替代方案以获得有效的光开关特性。在这里，我们提出了一系列基于绕丹宁的光开关，可以通过一个简单的合成步骤来制备，无需复杂的纯化。光开关是由紫外线和可见光在两个开关方向上引起的，亚稳态的热稳定性和量子产率非常高。另一个好处是绕丹宁片段的氢键能力，使其能够在超分子或药物化学中应用。我们进一步表明，已知的绕丹宁抑制剂 SMI-16a 是一种光开关细胞凋亡诱导剂。SMI-16a的生物活性可以通过非活性E异构体和活性Z异构体之间的可逆光异构化有效地打开或关闭。因此，基于绕丹宁的光开关代表了一种易于访问且非常有价值的分子工具箱，用于实现对各种功能分子系统的光响应。

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Rhodanine-Based Chromophores: Fast Access to Capable Photoswitches and Application in Light-Induced Apoptosis

Molecular photoswitches are highly desirable in all chemistry-related areas of research. They provide effective outside control over geometric and electronic changes at the nanoscale using an easy to apply, waste-free stimulus. However, simple and effective access to such molecular tools is typically not granted, and elaborate syntheses and substitution schemes are needed in order to obtain efficient photoswitching properties. Here we present a series of rhodanine-based photoswitches that can be prepared in one simple synthetic step without requiring elaborate purification. Photoswitching is induced by UV and visible light in both switching directions, and thermal stabilities of the metastable states as well as quantum yields are very high. An additional benefit is the hydrogen-bonding capacity of the rhodanine fragment, which enables applications in supramolecular or medicinal chemistry. We further show that the known rhodanine-based inhibitor SMI-16a is a photoswitchable apoptosis inducer. The biological activity of SMI-16a can effectively be switched ON or OFF by reversible photoisomerization between the inactive E and the active Z isomer. Rhodanine-based photoswitches therefore represent an easy to access and highly valuable molecular toolbox for implementing light responsiveness to the breadth of functional molecular systems.

更新日期：2024-01-11

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