反应详情

A process for preparing p-(2-{5-chloro-2-methoxybenzamido}ethyl)-benzene sulfonamide which comprises the steps of methylating 5-chlorosalicylic acid to methyl-5-chloro-2-methoxybenzoate, treating methyl-5-chloro-2-methoxybenzoate with phenethylamine to obtain N-phenethyl-5-chloro-2-methoxybenzamide, subjecting said N-phenethyl-5-chloro-2-methoxybenzamide to chlorosulfonation and aminolysis to yield p-(2-{5-chloro-2-methoxybenzamido}ethyl)-benzene sulfonamide.