(3R,3aR,6R,6aS)-N-[6-(benzyloxy)hexahydrofuro[3,2-b]furan-3-yl]-N,N-dimethyl-N-octylammonium trifluoromethanesulfonate   、                                                                                      
bis(trifluoromethane)sulfonimide lithium                                                                                                                                                                                              以
                                                                                         
丙酮                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以94%的产率得到(3R,3aR,6R,6aS)-N-[6-(benzyloxy)hexahydrofuro[3,2-b]furan-3-yl]-N,N-dimethyl-N-octylammonium bis(trifluoromethanesulfonyl)imide