9-[(3aR,4R,6R,6aR)-2,2-dimethyl-6-[(3,4,5-trifluorophenyl)methoxymethyl]-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-8-N-[(3,4-dichlorophenyl)methyl]purine-6,8-diamine                                                                                                                                                              在
                                                                                                                                                                                 
三氟乙酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以59%的产率得到(2R,3R,4S,5R)-2-[6-amino-8-(3,4-dichlorobenzylamino)-purin-9-yl]-5-(3,4,5-trifluorobenzyloxymethyl)-tetrahydrofuran-3,4-diol