1: 2-nitro-4-hydroxy-toluene With potassium tert-butylate in tetrahydrofuran T=20°C; 1 h; 2: n-propyl methanesulfonate in tetrahydrofuran; dimethyl sulfoxide T=95°C; 2 h;

potassium carbonate in N,N-dimethyl-formamide 5 h;

hydrogen; palladium 10 on activated carbon in ethanol T=20°C; 5 h;