(1R,2S,3R)-1-(N-(3-ethoxyacryloyl)ureido)-2,3-isopropylidenedioxy-4-methoxymethyloxymethyl-4-cyclopentene 在
ammonium hydroxide 作用下,
以
丙酮 为溶剂,
反应 10.0h,
以91%的产率得到1-<(1R,2S,3R)-2,3-isopropylidenedioxy-4-methoxymethyloxymethyl-4-cyclopenten-1-yl>-2,4-(1H,3H)-pyrimidinedione