1: (diethylamino)(4-methoxyphenyl)acetonitrile With sodium hydride in DMF (N,N-dimethyl-formamide) T=20°C; 1 h; 2: benzyl chloride in DMF (N,N-dimethyl-formamide) T=20°C; 3: With hydrogenchloride; methanol; water more than 3 stages;

sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride; oxygen in dimethyl sulfoxide 4 h;