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(a) EtOH; (b) CuBr2, C4H9NO2, CH3CN; (c) NaBH4, EtOH; Dess-Martin reagent, dry THF; (d) NaBH(AcO)3, ClCH2CH2Cl; (e) 1,1′-di-tert-butylphosphinoferrocene palladium dichloride, K2CO3, toluene/EtOH/H2O; (f) LiN[Si(CH3)3]2, 2N HCl, dry THF, and then (Boc)2O, Et3N, CH2Cl2; (g) CH3ONa, NH4Cl, CH3OH; (h) HCl/EtOH.
