Conformationally locked chromophores of CFP and Sirius protein
作者:Nadezhda S. Baleeva、Aleksandra S. Tsarkova、Mikhail S. Baranov
DOI:10.1016/j.tetlet.2016.06.006
日期:2016.7
Recent works have demonstrated the potential of fluorescentproteinchromophores as useful dyes with unique photophysical properties. Herein, we report the synthesis of two novel highly fluorescentdyesbased on conformationallylockedchromophores of the fluorescentproteins CFP and Sirius. These novel synthetic dyes demonstrate high fluorescence quantum yields and pH-independence in the physiological
The multitalented synthetic reagent trimethyl aconitate (1) is a renewable raw material with a high density of functional groups that up to now has only been scarcely used as a C6 building block. Domino reactions with 1 consisting of imine additions and intramolecular acylations provide simple access to heteropolycycles in one-pot reactions. For example, 1 reacts with N-methylbenzylidenamine (2) to give the spiro[pyrrolidinone-3,3'-dihydropyrrolinone] 3 in 40 % yield.