Abstract
This paper describes the synthesis of fluorescent peptoids using the Ugi multicomponent reaction (4CR). The four synthesized structures had their photophysical properties evaluated and their potential as biomarkers established. The peptidomimetics were used at very low concentrations (10 nM) to follow their internalization in breast cancer cells and had their localization precisely determined. One of the new peptoids displayed mitochondrial affinity and stained this important organelle selectively. Co-staining experiments using MitoTracker Red confirmed the localization inside live cells.
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