Visible light-induced nitric oxide release from a novel nitrobenzene derivative cross-conjugated with a coumarin fluorophore
作者:Kai Kitamura、Naoya Ieda、Kazuhiro Hishikawa、Takayoshi Suzuki、Naoki Miyata、Kiyoshi Fukuhara、Hidehiko Nakagawa
DOI:10.1016/j.bmcl.2014.10.075
日期:2014.12
dimethylnitrobenzene derivatives conjugated with coumarins were designed, synthesized and evaluated as photocontrollable NO donors. The optical properties and efficiency of photo-induced NO release were dependent upon the nature of the conjugation system. One of these compounds, Bhc-DNB (1), showed spatiotemporally well-controlled NO release in cultured cells upon exposure to light in the less-cytotoxic visible
一氧化氮(NO)是内源性生物合成的众所周知的自由基分子,在哺乳动物中显示出各种功能。为了研究NO功能,可控NO供体,即响应于光而释放NO的化合物,有望潜在地有用。然而,大多数常规的NO供体需要有害的紫外线来释放NO。在这项研究中,设计,合成和评估了两种与香豆素共轭的二甲基硝基苯衍生物,作为光可控的NO供体。光诱导NO释放的光学性质和效率取决于缀合系统的性质。这些化合物之一Bhc-DNB(1)显示,在暴露于细胞毒性较小的可见光波长范围(400-430 nm)的光中时,培养细胞的NO释放在时空上得到了很好的控制。