1: 3-Methoxy-4-nitrobenzoic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride in N,N-dimethyl-formamide T=20°C; 0.25 h; 2: methylamine in tetrahydrofuran; N,N-dimethyl-formamide T=20°C; 18 h;

benzotriazol-1-ol in N,N-dimethyl-formamide T=20°C; 18 h;

hydrogen; palladium 10 on activated carbon in ethanol T=20°C; 18 h;