S-ethyl 2-(4-(4-(2-(6-amino-4-(2-(5-oxotetrahydrofuran-2-carbonyl)hydrazinyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)piperazin-1-yl)phenoxy)acetate 在
N,O-双三甲硅基乙酰胺 作用下,
反应 20.5h,
以25%的产率得到S-ethyl 2-(4-(4-(2-(5-amino-2-(5-oxotetrahydrofuran-2-yl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-7-yl)ethyl)piperazin-1-yl)phenoxy)acetate