1: 78 percent / AlCl3 / CH2Cl2 / 1 h / 20 °C 2: H2 / Pd(OH)2 / methanol / 3 h 3: 0.162 g / methanol / 3 h 4: 84 percent / NaH / tetrahydrofuran / 6 h 5: 85 percent / TFA / CH2Cl2 / 1 h / 20 °C View Scheme