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Synthesis of novel purine and 7-deazapurine derivatives linked to C-4 of 1,2,3-triazolyl ferrocene. Reagents and conditions: (i) propargyl bromide, NaH, anhydrous DMF, Ar atmosphere, 60 °C, 24 h; (ii) corresponding azide, Cu(OAc)2, methanol, room temperature, 24 h.
