1: 1-(2-hydroxyethoxy)-4-nitrobenzene With methanesulfonyl chloride; triethylamine in tetrahydrofuran T=20°C; 1 h; 2: 1H-1,2,4-triazol With potassium carbonate in DMF (N,N-dimethyl-formamide) T=90°C; 16 h;

in DMF (N,N-dimethyl-formamide) T=75 - 80°C; 5 h;