General Procedure to Obtain 4-((5,6-R-1H-Benzo[d][1,2,3]Triazol-1-yl)Methyl)aniline (16–18)

To a mixture of proper compound 22 or 23 (1.77 mmol) in Ethanol (20 ml), and Hydrated hydrazine in ratio 1:20 (35.4 mmol), Pd/C in ratio 1:0.1 w/w was added. The mixture was stirred and heated at 80°C for 1 h. Palladium on carbon was filtered off when the solution was still hot, and the mothers obtained were concentrated into half volume. By cooling down, the resulting solid was filtered out in vacuo. The solid compound was washed twice with diethyl ether (20 ml) and subsequently crystallized from Ethanol. Derivative 24 (1.77 mmol) was solved in Ethanol (100 ml) and reduced with Methylhydrazine in 1/10 molar ratio, at 100°C in autoclave for 48 h.