1: 6M HCl / dioxane; CH2Cl2 / 0.5 h / Ambient temperature 2: hydroxybenzotriazole, N-ethyl-N'-(3-dimethylaminopropyl)carbodiimide*HCl / CH2Cl2 / 15 h / -10 deg C to RT 3: 71 percent / HOAc / H2O / 4 h / 50 °C 4: 96 percent / Bu4NF*3H2O / dimethylformamide / 2 h / Ambient temperature 5: EDCI / CH2Cl2 / 15 h / -10 deg C to RT 6: 6M HCl / dioxane; CH2Cl2 / 0.5 h / Ambient temperature 7: aq. KHCO3 / CHCl3 / 1) RT, 2 h, 2) 50 deg C, 30 min 8: 95 percent / 1M LiOH / H2O; dioxane / 2 h / 10 °C 9: thioanisole, BrSiMe3, CF3COOH / 1 h / 0 °C View Scheme