5'-O-(4,4'-dimethoxytrityl)-N2,N6-diisobutyryl-2-amino-2'-deoxyadenosine                                                                                                                                                              在
                                                                                                                                                                                 
二异丙基铵盐四氮唑                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 Phosphoric acid (2R,3S,5R)-5-(2,6-diamino-purin-9-yl)-2-hydroxymethyl-tetrahydro-furan-3-yl ester (2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester methyl ester