Fluorophores derived from photoactivatable azide-pi-acceptor fluorogens or from a thermal reaction of an azide-pi-acceptor fluorogen with an alkene or alkyne are disclosed. Fluorophores derived from a thermal reaction of an alkyne-pi-acceptor fluorogen with an azide are also disclosed. The fluorophores can readily be activated by light and can be used to label a biomolecule and imaged on a single-molecule level in living cells.
本发明揭示了从光活化偶
氮-π-受体荧光原子或从偶
氮-π-受体荧光原子与
烯烃或
炔烃进行热反应中得到的荧光原子。还揭示了从炔基-π-受体荧光原子与偶
氮进行热反应中得到的荧光原子。这些荧光原子可以轻松地被光激活,并可用于标记
生物分子,并在单分子
水平上在活细胞中成像。