dimethyl 2-(benzyloxy)-2-((4R,5S)-2,2-dimethyl-5-vinyl-1,3-dioxolan-4-yl)ethylphosphonate                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 19.0h,
                                                                                                                生成                                                 (3as,9as)-9-(benzyloxy)-4-bromo-2,2-dimethyl-7-methoxy-hexahydro-3aH-[1,3]dioxolo[4,5-e][1,2]oxaphosphocine 7-oxide