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Article Abstract
Herein, the successful syntheses of D- and C-N-methyl and D-tert-butyl Hoechst dyes are presented. This includes the preparation of the labelled D- and C-N-methyl piperazines and D-tert-butylated hydroxytoluene precursors. The tert-butyl Hoechst dye is known to bind a specific RNA aptamer. Spectroscopic NMR studies of the labelled Hoechst dye-aptamer complexes allowed for the unambiguous assignment of chemical shifts, as well as the dynamics of the bound dye.
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