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HPLC trace of the deprotection reaction of ©5. (a) ©5 in buffer (50 mM); (b) ©5 + PhSH (250 mM) + ct-DNA (0.1 mg ml −1); (c) ©5 + PhSH + ct-DNA + Ru (10%) t = 0; (d) ©5 + PhSH + ct-DNA + Ru t 20 min; (e) ©5 + PhSH + ct-DNA + Ru t = 1 h. Inset: picture (left to = right) of the aliquots a, b, c and e.
