1: salicylaldehyde With sodium hydride in tetrahydrofuran; N,N-dimethyl-formamide T=0°C; 0.5 h; 2: 1-bromomethyl-3-methoxy-benzene in tetrahydrofuran; N,N-dimethyl-formamide T=20°C; 24 h; Further stages.;

potassium carbonate; potassium iodide in tetrahydrofuran 6 h; Heating;