benzyl (2S,3S)-4-(2-amino-6-oxo-1H-purin-9-yl)-3-hydroxy-2-[4-[(2S,3S,4R,5R,6S)-3,4,5-triacetyloxy-6-methyloxan-2-yl]oxybutanoylamino]butanoate                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide   、                                                                                                  
sodium methylate                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (2S,3S)-4-(2-amino-6-oxo-1H-purin-9-yl)-3-hydroxy-2-[4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxybutanoylamino]butanoic acid