GTF-S T=37°C; 168 h;

Multi-step reaction with 3 steps 1: 67 percent / 1,2-dichloro-ethane / 72 h / Heating2: 75.5 percent / Bu3SnH / toluene / 3 h / Heating3: 1.) Bu4NCl*2H2O, KF / 1.) CH3CN, 70 deg C, 48 h; 2.) THF, AcOH, Water, Rt, 4 d