Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Ethyl oxazole-5-carboxylate, is researched, Molecular C6H7NO3, CAS is 118994-89-1, about Fluorogenic Behaviour of the Hetero-Diels-Alder Ligation of 5-Alkoxyoxazoles with Maleimides and their Applications.Category: pyrazines.
Fluorogenic reactions are largely underrepresented in the toolbox of chemoselective ligations despite their tremendous potential, particularly in chem. biol. and biochem. In this respect, we have investigated in full detail the fluorescence behavior of the azaphthalamide, a scaffold which is generated through a hetero-Diels-Alder reaction of 5-alkoxyoxazole and maleimide derivatives under mild conditions that are compatible with, among others, peptide chem. The scope and limitations of such a fluorogenic labeling strategy were examined through four distinct applications, which target enzymic activities or bioorthogonal reactions.
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