in dichloromethane Yield given;

<b>Multi-step reaction with 2 steps<br /> </b>1: 74 percent / 1-hydroxybenzotriazole (HOBT), DCC / CH₂Cl₂ <br />2: LAH / tetrahydrofuran<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 1.) dicyclohexylcarbodiimide / 1.) CH₂Cl₂, 20 min, 2.) CH₂Cl₂, RT, 24 min<br />2: 70 percent / LAH / tetrahydrofuran / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: 92 percent / H₂ / Raney nickel / ethanol / 20 &deg;C<br />2: 81 percent / NaBH₃CN / ethanol / 0 &deg;C / pH 5<br />3: 98 percent / HCl / ethanol / 20 &deg;C<br />4: -20 &deg;C<br />5: LiAlH₄ / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1.1: anhydrous CuCl₂; 1-hydroxybenzotriazole; dicyclohexylcarbodiimide / dimethylformamide / 0.5 h / 0 - 20 &deg;C<br />1.2: 92 percent / dimethylformamide / 24 h / 0 - 20 &deg;C<br />2.1: 95 percent / LiAlH₄ / tetrahydrofuran / 12 h / Heating<br />3.1: triethylamine / diethyl ether / 0.5 h / 0 &deg;C<br />4.1: 80 percent / triethylamine / H₂O / 20 h / 0 - 20 &deg;C<br /> <br /> &nbsp;