作者:Yoshio Saito、Katsuhiko Matsumoto、Yoshiki Takeuchi、Subhendu Sekhar Bag、Satoshi Kodate、Takashi Morii、Isao Saito
DOI:10.1016/j.tetlet.2009.01.029
日期:2009.4
We synthesized C8-vinylpyrene-substituted 2'-deoxyguanosine (VPy)G and studied the photoregulated reversible E-Z isomerization. When E-isomer was irradiated with visible light (>420 nm), E- to Z-isomerization took place very rapidly, while upon irradiation with UV-Iight (similar to 365 nm), Z-isomer was converted to E-isomer. When Z-isomer was illuminated with 365-400 nm light, no fluorescence was observed, while F-isomer showed a very strong fluorescence emission, indicating that (VPy)G could be a useful fluorescence switching molecule. (C) 2009 Elsevier Ltd. All rights reserved.