4-[4-(2,6-dioxo-1,3-dipropyl-2,3,6,7-tetrahydro-1H-purin-8-yl)-bicyclo[2.2.2]oct-1-yl]-butyric acid methyl ester 在
lithium hydroxide 、
盐酸 作用下,
以
四氢呋喃 、
水 为溶剂,
以81%的产率得到4-[4-(2,6-dioxo-1,3-dipropyl-2,3,6,7-tetrahydro-1H-purin-8-yl)-bicyclo[2.2.2]oct-1-yl]-butyric acid