2',3'-O,O-isopropylidene-2'-C-β-methylguanosine 、
sec-butyl (chloro(naphthalen-1-yloxy)phosphoryl)-L-alaninate 在
叔丁基氯化镁 作用下,
以
四氢呋喃 为溶剂,
以42%的产率得到sec-butyl ((((3aR,4R,6R,6aR)-6-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-2,2,6a-trimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methoxy)(naphthalen-1-yloxy)phosphoryl)-L-alaninate