3-chloro-5-(1,1-dioxo-isothiazolidin-2-yl)-benzoic acid 、 2-(2-aminomethyl-5-cyano-phenoxy)-acetamide hydrochloride 以to give N-(2-carbamoylmethoxy-4-cyano-benzyl)-3-chloro-5-(1,1-dioxo-isothiazolidin-2-yl)-benzamide的产率得到N-(2-carbamoylmethoxy-4-cyano-benzyl)-3-chloro-5-(1,1-dioxo-isothiazolidin-2-yl)-benzamide