ethyl α-[1-(3-acetoxy-2-O-benzoyl-1-propoxy)methyl-6-(1'-carboethoxypropylthio)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]thiobutyrate 在
甲醇 、
氨 作用下,
以82%的产率得到α-[1-(2,3-dihydroxy-1-propoxy)methyl-6-(1'-carbamoylpropylthio)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]thiobutanamide