(3aS,4S,6aR)-4-(2-methoxy-2-oxoethyl)-2,2-dimethyl-4,6a-dihydro-3aH-[1,3]dioxolo[4,5-c]pyrrol-5-ium-5-olate 、
1-vinylpyrimidine-2,4(1H,3H)-dione 以
甲苯 为溶剂,
以67%的产率得到1-{(3aS,4S,7R,8aR,8bR)-4-(2-methoxy-2-oxoethyl)-2,2-dimethylhexahydro[1,3]dioxolo[3,4]pyrrolo[1,2-b]isoxazol-7-yl}uracil