bromo-1 O-isopropylidene-2,3 O-paranitrobenzoyl-5-D-ribofurannose 、
二(2-氯乙基)氯化铵 以
乙腈 为溶剂,
以220 mg的产率得到((3aR,4R,6aR)-6-(((3aS,6S,6aS)-2,2-dimethyl-6-(((4-nitrobenzoyl)oxy)methyl)tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)oxy)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl 4-nitrobenzoate