third set composed of organic azides. Synthesized triazoles were then tested in vitro against B16 melanomacellline. Amongst them, compounds a1b1 (R1 = p-nitrophenyl, R2 = benzyl), a4b1 (R1 = naphthyl, R2 = benzyl) and a4b5 (R1 = naphthyl, R2 = (R/S)- dioxolane) showed the best activityagainst B16 melanomacells, with IC50 of 5.12, 3.89 and 6.60 muM respectively.