[[9-[(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-2-yl]-6-chloropurin-8-yl]-tert-butylamino] acetate 在
sodium azide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以70%的产率得到tert-Butyl-{2,6-diazido-9-[(2R,3R,4R,5R)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-9H-purin-8-yl}-amine