1: N-(4-methoxyphenyl)-1-(3,4-dimethoxyphenyl)ethylamine With ammonium cerium(IV) nitrate in water; acetonitrile Oxidation; C-N bond cleavage; 2: With sodium tetrahydroborate in water; acetonitrile Reduction; 3: acetic anhydride With sodium carbonate in water; acetonitrile Acetylation;