Development of High‐Performance Pyrimidine Nucleoside and Oligonucleotide Diarylethene Photoswitches
作者:Theresa Kolmar、Simon M. Büllmann、Christopher Sarter、Katharina Höfer、Andres Jäschke
DOI:10.1002/anie.202014878
日期:2021.4.6
their further development is hampered by the poor understanding of how the chemical structure modulates the photochromic properties. Here we synthesized 26 systematically varied deoxyuridine‐ and deoxycytidine‐derived DAEs and analyzed reaction quantum yields, composition of the photostationary states, thermal and photochemical stability, and reversibility. This analysis identified two high‐performance
核苷和寡核苷酸二芳基乙烯(DAE)是一类新兴的光致变色材料,具有很高的应用潜力。然而,由于对化学结构如何调节光致变色性能的了解不足,它们的进一步发展受到阻碍。在这里,我们合成了 26 种系统不同的脱氧尿苷和脱氧胞苷衍生的 DAE,并分析了反应量子产率、光稳态的组成、热稳定性和光化学稳定性以及可逆性。该分析确定了两种高性能光电开关,具有近乎定量、完全可逆的来回开关,并且没有可检测到的热或光化学劣化。当掺入具有启动子序列的寡核苷酸时,核苷酸保持其光致变色性,并允许以高达 2.4 倍的关闭因子调节 T7 RNA 聚合酶的转录活性,这证明了光化学控制生物过程的潜力。