Photoactivable fluorophores. 1. Synthesis and photoactivation ofo-nitrobenzyl-quenched fluorescent carbamates.
作者:Richard T. Cummings、Grant A. Krafft
DOI:10.1016/0040-4039(88)80017-0
日期:1988.1
The synthesis and photoactivation of a new type of fluorescent probe, the photoactivable fluorophore (PAF) are described. The PAFs described in this paper consist of fluorescent aromatic amines coupled to substituted nitrobenzyl quenching chromophores via a carbamate linkage. Photoactivation occurs by an intramolecular photo-redox reaction, converting the o-nitrobenzyl group to a labileo-nitrosobenzaldehyde
描述了新型荧光探针,可光活化的荧光团(PAF)的合成和光活化。本文中描述的PAF由荧光性芳香胺组成,这些胺通过氨基甲酸酯键与取代的硝基苄基猝灭发色团偶联。通过分子内的光-氧化还原反应发生光活化,将邻硝基苄基转化为不稳定的邻硝基亚硝基苯甲醛半缩醛,该片段断裂并失去CO 2释放出荧光胺。还报道了光活化量子产率。