(1R,2S)-4-(aminooxy)cyclopentane-1,2-diol   、                                                                                      
(R)-2-amino-7-(2-bromo-4-fluoro-phenyl)-4-methyl-7,8-dihydro-6H-pyrido[4,3-d]pyrimidine-5-thione                                                                                                                                                              在
                                                                                                                                                                                 
mercury(II) diacetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以43%的产率得到(7R,Z)-2-amino-7-(2-bromo-4-fluorophenyl)-4-methyl-7,8-dihydropyrido[4,3-d]pyrimidin-5(6H)-one O-(3R,4S)-3,4-dihydroxycyclopentyloxime