(7R,8R)-6-benzyl-7-((4S,5R)-2,2-dimethyl-5-vinyl-[1,3]dioxolan-4-yl)-8-vinyl-7,8-dihydro-6H-[1,3]dioxolo[4,5-g]isoquinolin-5-one                                                                                                                                                              在
                                                                                                                                         [Ru(=CHPh)(PCy
3)2(Cl)2]                                                                                                                                                                          作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 72.0h,
                                                                                                                以83%的产率得到(3R,4S,4aR,11bR)-5-benzyl-3,4-isopropylidenedioxy-3,4a,5,11b-tetrahydro-4H-[1,3]dioxolo[4,5-j]phenanthridin-6-one