Patent ID: 8853439

Claim:
A process for the preparation of lacosamide of Formula (I), the process comprising: a) reacting a compound of Formula II, with benzyl amine to give a compound of Formula III, wherein R 1 is a suitable amine protecting group selected from Bac, Fmoc, Cbz, and Tos; and R 2 is a suitable hydroxyl protecting group selected from benzyl, tertiary butyl, and benzoyl, b) suitably deprotecting R 1 group of Formula III to obtain a compound of Formula IV, wherein R 2 is a suitable hydroxyl protecting group selected from benzyl, tertiary butyl, and benzoyl; c) acetylating the compound of Formula IV with a suitable acetylating agents to obtain a compound of Formula V, wherein R 2 is a suitable hydroxyl protecting group selected from benzyl, tertiary butyl, and benzoyl; d) suitably deprotecting R 2 group of Formula V to obtain a compound of Formula VI; and e) O-methylating the alcoholic group of compound of Formula VI to obtain the lacosamide of Formula I.