1: CH2Cl2; H2O / a.) 0 to 5 deg C, 2h; b.) 25 deg C, 6h 2: Dowex 1X2 (OH-) resin / H2O 3: 75 percent / LAH / tetrahydrofuran / 20 h / Heating 4: 90percent CF3CO2H / 20 h / 25 °C 5: H2 / 5percent Pt on C / H2O / 20 h / 2585.7 Torr View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 97 percent / LDA / tetrahydrofuran / 2.5 h / -78 &deg;C<br />2: 79 percent / H₂ / PtO₂ / ethyl acetate / 20 h / 2327.2 - 2585.7 Torr / other reagent NaBH₄ <br /> <br /> &nbsp;