5-ethyl-6-{3-[(5-ethyl-2,6-dioxopyrimidin-4(1H,3H)-yl)methyl]benzyl}pyrimidine-2,4(1H,3H)-dione 、
3-[(烯丙氧基)甲氧基]-1-丙烯 在
N,O-双三甲硅基乙酰胺 、
三氟甲磺酸三甲基硅酯 作用下,
以
乙腈 为溶剂,
反应 48.0h,
以34%的产率得到5-ethyl-1-allyloxymethyl-6-{3-[(5-ethyl-1-allyloxymethyl-2,6-dioxopyrimidin-4(1H,3H)-yl)methyl]benzyl}pyrimidine-2,4(1H,3H)-dione