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Conditions: (a) NaH, iodomethane in THF, 0 °C to room temperature, 24 h, 66%; (b) NaH, KI, bromoacetic acid in THF, 0 °C to reflux, 22 h, 95%; (c) (i) cis-[Ru(bpy)2Cl2] in EtOH/H2O (1/1 v/v), reflux, 1.5 h, (ii) KPF6, 57% ([1](PF6)2), 69% ([2](PF6)2), 55% ([3](PF6)2). Compounds [1]–[3](PF6)2 were obtained as racemic Λ/Δ mixtures.
