申请人:National University Corporation Okayama University
公开号:US07928236B2
公开(公告)日:2011-04-19
The subject of the present invention is to provide a fluorescent substance excitable under visible light, having higher photostability and a long fluorescence lifetime. Another subject is to provide a fluorescent substance consists of a non-natural amino acid applicable to peptide synthesis systems.
Searching fluorescent substances, which are fluorescent amino acids and excitable under visible light, having the lowest possible molecular weight for a high photostability resulted in forming a condensed polycyclic aromatic compound by subjecting a compound having an acridone structure to substitution with an amino acid and further condensation with a benzene ring. Thus, the subject is achieved by the fluorescent substance consisting of amino acid-substituted benzoacridone derivative excitable under visible light.
本发明的主题是提供一种在可见光下可激发的荧光物质,具有更高的光稳定性和长的荧光寿命。另一个主题是提供一种由非天然氨基酸构成的荧光物质,适用于肽合成系统。通过寻找荧光氨基酸并在可见光下激发,使得分子量尽可能低以获得高光稳定性的荧光物质,通过将具有吖啶酮结构的化合物经氨基酸取代和苯环进一步缩合形成紧凑的多环芳香化合物。因此,通过由氨基酸取代的苯基吖啶酮衍生物构成的在可见光下可激发的荧光物质来实现该主题。