The Invention relates to a New procedimienmto of Industrial Synthesis of agomelatine or N - [2 - (7 - methoxy - 1naftil) ethyl] acetamide of formula (i): The aglomelatina or N - [2 - (7 - methoxy - 1-naphthyl] acetamide has interesting pharmacological PropertiesPostupak za industrijsku sintezu jedinjenja formule (I):