Carbofluoresceins and Carborhodamines as Scaffolds for High-Contrast Fluorogenic Probes
摘要:
Fluorogenic molecules are important tools for advanced biochemical and biological experiments. The extant collection of fluorogenic probes is incomplete, however, leaving regions of the electromagnetic spectrum unutilized. Here, we synthesize green excited fluorescent and fluorogenic analogues of the classic fluorescein and rhodamine 110 fluorophores by replacement of the xanthene oxygen with a quaternary carbon. These anthracenyl "carbofluorescein" and "carborhodamine 110" fluorophores exhibit excellent fluorescent properties and can be masked with enzyme- and photolabile groups to prepare high-contrast fluorogenic molecules useful for live cell imaging experiments and super-resolution microscopy. Our divergent approach to these red-shifted dye scaffolds will enable the preparation of numerous novel fluorogenic probes with high biological utility.
Fluorescent probes and their salts show sufficient solubility in water and detect sulfane sulfur in vivo. The fluorescent probes can have the following structure:
FLUORESCENT DYE AND USE THEREOF
申请人:Eisai R&D Management Co., Ltd.
公开号:US20210255191A1
公开(公告)日:2021-08-19
Disclosed is: a fluorescent dye comprising a compound, a tautomer of the compound, or a salt of the compound or the tautomer; a labeled composite substance comprising the fluorescent dye and a composite substance which are bonded to each other; a composition containing the fluorescent dye or the labeled composite substance; and a method for acquiring information about a substance of interest by a super-resolution microscopy.