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. Author manuscript; available in PMC: 2008 Nov 15.
Published in final edited form as: Bioorg Med Chem Lett. 2007 Sep 15;17(22):6111–6115. doi: 10.1016/j.bmcl.2007.09.050

Scheme 1.

Scheme 1

Reagents and conditions (a) NaBH4, THF/ H2O; (b) (CH3SO2)2O, DMAP, CH3CN; (c) NaOH, MeOH, CH2Cl2; (d) DMAP, DMSO; (e) MnO2, Toluene; (f) NaBH4, CH3CN; (g) Acetic anhydride or benzoyl chloride, DMAP, CH2Cl2; (h) Trimethylphenylammonium chloride, CH3CN; (i) Na2CO3, MeOH