二乙基亚磷酰氯 、
[(3aR,4R,6R,6aR)-4-(6-Benzoylamino-purin-9-yl)-6-(tert-butyl-diphenyl-silanyloxymethyl)-2-ethoxy-tetrahydro-furo[3,4-d][1,3]dioxol-2-ylmethyl]-carbamic acid benzyl ester 以
乙腈 为溶剂,
生成 [(2R,3aR,4R,6R,6aR)-4-(6-Benzoylamino-purin-9-yl)-2-(benzyloxycarbonylamino-methyl)-6-(tert-butyl-diphenyl-silanyloxymethyl)-tetrahydro-furo[3,4-d][1,3]dioxol-2-yl]-phosphonic acid diethyl ester 、 (S)-6-N-benzoyl-2',3'-O-(2-benzyloxycarbonylamino-1-diethylphosphonoethylidene)-5'-O-tert-butyldiphenylsilyladenosine