1: 3-Aminoindazole With potassium hydroxide in dimethyl sulfoxide 0.0833333 h; 2: benzyl chloride in dimethyl sulfoxide T=20°C; 2 h;

1.1: H2 / 2 percent Pd/C / methanol / 8 h / 40 - 45 °C 2.1: 0.2 g / methanol / 3 h / Heating 3.1: 99 percent / aq. HCl / 0.25 h / Heating 4.1: KOH / dimethylsulfoxide / 0.08 h 4.2: 70 percent / dimethylsulfoxide / 2 h / 20 °C View Scheme

1.1: 88 percent / H2 / 2 percent Pd/C / methanol / 3 h / 20 °C 2.1: 99 percent / aq. HCl / 0.25 h / Heating 3.1: KOH / dimethylsulfoxide / 0.08 h 3.2: 70 percent / dimethylsulfoxide / 2 h / 20 °C View Scheme

1.1: 0.2 g / methanol / 3 h / Heating 2.1: 99 percent / aq. HCl / 0.25 h / Heating 3.1: KOH / dimethylsulfoxide / 0.08 h 3.2: 70 percent / dimethylsulfoxide / 2 h / 20 °C View Scheme

1.1: 99 percent / aq. HCl / 0.25 h / Heating 2.1: KOH / dimethylsulfoxide / 0.08 h 2.2: 70 percent / dimethylsulfoxide / 2 h / 20 °C View Scheme