{4-[3-(3-Cyclohexyl-3-hydroxy-propyl)-2,5-dioxo-imidazolidin-4-yl]-butylsulfanyl}-acetic acid ethyl ester 在
sodium hydroxide 作用下,
生成 7-<3-(3-Cyclohexyl-3-hydroxypropyl)-2,5-dioxo-4-imidazolidinyl>-3-thiaheptanoic acid 、 7-<3-(3-Cyclohexyl-3-hydroxypropyl)-2,5-dioxo-4-imidazolidinyl>-3-thiaheptanoic acid