(R)-N-Benzyl-3-methoxy-2-(N-methyl-2-nitrophenylsulfonamido)propanamide is an intermediate in the synthesis of N-Methyl Lacosamide (M315215), derived from (R)-2-Amino-N-benzyl-3-methoxypropionamide (A598000), which is an impurity of Lacosamide which is a potent anticonvulsant.