2-(pent-4-enoyl)amino-4-[O-(N-6-nitroveratryloxycarbonyl)amino]hydroxybutanoic acid cyanomethyl ester 、 ((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-3-(((((2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(hydroxy)phosphoryl)oxy)tetrahydrofuran-2-yl)methyl dihydrogenphosphate tetrabutylammonium salt 以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以39%的产率得到