甲醇   、                                                                                      
原甲酸三乙酯   、                                                                                      
(1S,2R,3S,4S)-3-(6-chloro-5-aminopyrimidin-4-yl)amino-1,4-bis(hydroxymethyl)cyclopentane-1,2-diol                                                                                                                                                              在
                                                                                                                                                                                 
对甲苯磺酸                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (1'S,2'R,3'S,4'S)-9-<1,4-bis(hydroxymethyl)-1,2-dihydroxycyclopent-3-yl>-6-methoxyadenine   、                                                                                             (1'S,2'R,3'S,4'S)-9-<1,4-bis(hydroxymethyl)-1,2-dihydroxycyclopent-3-yl>-6-dimethylaminoadenine