1.1: 87 percent / H2 / Pd/C / ethyl acetate / 2.5 h / 20 °C 2.1: 97 percent / TFA / CH2Cl2 / 20 °C 3.1: LiAlH4 / tetrahydrofuran / 1.3 h / Heating 3.2: 92 percent / aq.NaOH; water / 20 °C 4.1: Martin sulfurane / diethyl ether / 0.5 h / 0 °C 5.1: AD-mix-α; methylsulfonamide / 2-methyl-propan-2-ol; H2O / 216 h / 4 °C 6.1: TBAF / tetrahydrofuran / 27 h / 20 °C 7.1: 143 mg / DMAP / CH2Cl2; pyridine / 48 h 8.1: 97 percent / amberlite IRA-402 / methanol / 18 h View Scheme