2-amino-4-(((2S,3S,4R,5R)-5-(6-amino-2-iodo-9H-purin-9-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl)methylthio)butanoic acid   、                                                                                      (R)-tert-butyl 3-(((3aS,4S,6R,6aR)-6-(6-amino-2-chloro-9H-purin-9-yl)-2,2-dimethyl-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methylthio)pyrrolidine-1-carboxylate                                                                                                                                                                                                                                                                                                          生成                                                 (2R,3R,4S,5S)-2-(6-amino-2-chloro-9H-purin-9-yl)-5-(((R)-pyrrolidin-3-ylthio)methyl)-tetrahydrofuran-3,4-diol