boron trichloride-dimethyl sulfide   、                                                                                      
(3aR,4R,5R,6R,7aS)-2-(azetidin-1-yl)-4,5-bis(benzyloxy)-6-((benzyloxy)methyl)-3a,4,5,6,7,7a-hexahydrobenzo[d]thiazole                                                                                                                                                              在
                                                                                                                                                                                 silica gel   、                                                                                                  
氨   、                                                                                                  
methanol-dichloromethane                                                                                                                                  作用下,
                                                                                                                                                                                                                            以afforded the title compound as an off-white solid (0.052 g, 48%)的产率得到(3aR,4R,5R,6R,7aS)-2-(azetidin-1-yl)-6-(hydroxymethyl)-3a,4,5,6,7,7a-hexahydrobenzo[d]thiazole-4,5-diol