1: 3-azidopropanoic acid With triethylamine; diisopropyl-carbodiimide in N,N-dimethyl-formamide T=25°C; 0.0833333 h; 2: 1-amino-3-chloro-4-methoxybenzene in N,N-dimethyl-formamide T=50°C; 5 h; Inert atmosphereDarkness;