Magnesium, bromo(2-methyl-1H-indol-3-yl)-   、                                                                                      6α-benzoyloxy-7α-benzyloxymethyl-9-methyl-5-tosyl-5,6β,6aβ,7β,8,10aβ-hexahydroindeno<2,1-b>indole                                                                                                                                                                                              以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以79%的产率得到7α-benzyloxymethyl-9-methyl-6β-(2'-methylindol-3'-yl)-5-tosyl-5,6α,6aβ,7β,8,10aβ-hexahydroindeno<2,1-b>indole