反应条件
1: 1.) aqueous potassium carbonate, 2.) 10percent aq. HCl / 1.) tris-<2-(2-methoxyethoxy)ethyl>amine / 1.) dichloromethane, room temperature, 12 h, 2.) dichloromethane, room temperature, 12 h 2: 90 percent / sodium borohydride, KH2PO4 / methanol / 1 h / 0 °C 3: 95 percent / KOH / aq. ethanol / 12 h / 0 °C View Scheme