1: 3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole With sodium hydride in N,N-dimethyl-formamide T=0 - 20°C; 1 h; 2: 2-iodo-propane in N,N-dimethyl-formamide T=0 - 20°C; 16 h;