N-((R)-1-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-5H-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-5-yl)but-3-en-1-yl)hydroxylamine   、                                                                                      
6,7-dideoxy-1,2:3,4-di-O-isopropylidene-α-D-galacto-octodialdo-1,5-pyranose                                                                                                                                                              在
                                                                                                                                                                                 magnesium sulfate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                以76%的产率得到(R,Z)-1-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4',5'-d]pyran-5-yl)-N-(3-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4',5'-d]pyran-5-yl)propylidene)but-3-en-1-amine oxide