potassium hydroxide; ammonia; sodium 1.) aq.MeOH; Yield given. Multistep reaction;

Multi-step reaction with 3 steps 1: 1.) KOH, H2O, 2.) (PyS)2-Ph3P / 1.) THF, 2.) CH3CN2: 70 percent / HI / 10percent Pd / 16 h / 65 °C / 14710.2 Torr3: 1.) L-Selectride, 2.) imidazole / 1.) sec-butanol/THF, -78 deg C, 2.) DMF