1: 4-bromo(1H)-pyrazole With sodium hydride in N,N-dimethyl-formamide T=0°C; 1 h; 2: methansulfonic Acid Tetrahydro-furan-3-yl Ester in N,N-dimethyl-formamide T=100°C; 40 h;

1: With potassium acetate in N,N-dimethyl-formamide 0.166667 h; 2: With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in N,N-dimethyl-formamide T=80°C;